20128486560

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{65831}}^1$

素因数の和:65876

約数の個数: 288

約数和(自身を含む): 79431311232

約数和(自身を除く): 59302824672

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 98, 104, 105, 112, 120, 130, 140, 147, 156, 160, 168, 182, 195, 196, 208, 210, 224, 240, 245, 260, 273, 280, 294, 312, 336, 364, 390, 392, 416, 420, 455, 480, 490, 520, 546, 560, 588, 624, 637, 672, 728, 735, 780, 784, 840, 910, 980, 1040, 1092, 1120, 1176, 1248, 1274, 1365, 1456, 1470, 1560, 1568, 1680, 1820, 1911, 1960, 2080, 2184, 2352, 2548, 2730, 2912, 2940, 3120, 3185, 3360, 3640, 3822, 3920, 4368, 4704, 5096, 5460, 5880, 6240, 6370, 7280, 7644, 7840, 8736, 9555, 10192, 10920, 11760, 12740, 14560, 15288, 19110, 20384, 21840, 23520, 25480, 30576, 38220, 43680, 50960, 61152, 65831, 76440, 101920, 131662, 152880, 197493, 263324, 305760, 329155, 394986, 460817, 526648, 658310, 789972, 855803, 921634, 987465, 1053296, 1316620, 1382451, 1579944, 1711606, 1843268, 1974930, 2106592, 2304085, 2567409, 2633240, 2764902, 3159888, 3225719, 3423212, 3686536, 3949860, 4279015, 4608170, 5134818, 5266480, 5529804, 5990621, 6319776, 6451438, 6846424, 6912255, 7373072, 7899720, 8558030, 9216340, 9677157, 10269636, 10532960, 11059608, 11981242, 12837045, 12902876, 13692848, 13824510, 14746144, 15799440, 16128595, 17116060, 17971863, 18432680, 19354314, 20539272, 22119216, 23962484, 25674090, 25805752, 27385696, 27649020, 29953105, 31598880, 32257190, 34232120, 35943726, 36865360, 38708628, 41078544, 41934347, 44238432, 47924968, 48385785, 51348180, 51611504, 55298040, 59906210, 64514380, 68464240, 71887452, 73730720, 77417256, 82157088, 83868694, 89859315, 95849936, 96771570, 102696360, 103223008, 110596080, 119812420, 125803041, 129028760, 136928480, 143774904, 154834512, 167737388, 179718630, 191699872, 193543140, 205392720, 209671735, 221192160, 239624840, 251606082, 258057520, 287549808, 309669024, 335474776, 359437260, 387086280, 410785440, 419343470, 479249680, 503212164, 516115040, 575099616, 629015205, 670949552, 718874520, 774172560, 838686940, 958499360, 1006424328, 1258030410, 1341899104, 1437749040, 1548345120, 1677373880, 2012848656, 2516060820, 2875498080, 3354747760, 4025697312, 5032121640, 6709495520, 10064243280, 20128486560]

約数ペア:

[(1, 20128486560), (2, 10064243280), (3, 6709495520), (4, 5032121640), (5, 4025697312), (6, 3354747760), (7, 2875498080), (8, 2516060820), (10, 2012848656), (12, 1677373880), (13, 1548345120), (14, 1437749040), (15, 1341899104), (16, 1258030410), (20, 1006424328), (21, 958499360), (24, 838686940), (26, 774172560), (28, 718874520), (30, 670949552), (32, 629015205), (35, 575099616), (39, 516115040), (40, 503212164), (42, 479249680), (48, 419343470), (49, 410785440), (52, 387086280), (56, 359437260), (60, 335474776), (65, 309669024), (70, 287549808), (78, 258057520), (80, 251606082), (84, 239624840), (91, 221192160), (96, 209671735), (98, 205392720), (104, 193543140), (105, 191699872), (112, 179718630), (120, 167737388), (130, 154834512), (140, 143774904), (147, 136928480), (156, 129028760), (160, 125803041), (168, 119812420), (182, 110596080), (195, 103223008), (196, 102696360), (208, 96771570), (210, 95849936), (224, 89859315), (240, 83868694), (245, 82157088), (260, 77417256), (273, 73730720), (280, 71887452), (294, 68464240), (312, 64514380), (336, 59906210), (364, 55298040), (390, 51611504), (392, 51348180), (416, 48385785), (420, 47924968), (455, 44238432), (480, 41934347), (490, 41078544), (520, 38708628), (546, 36865360), (560, 35943726), (588, 34232120), (624, 32257190), (637, 31598880), (672, 29953105), (728, 27649020), (735, 27385696), (780, 25805752), (784, 25674090), (840, 23962484), (910, 22119216), (980, 20539272), (1040, 19354314), (1092, 18432680), (1120, 17971863), (1176, 17116060), (1248, 16128595), (1274, 15799440), (1365, 14746144), (1456, 13824510), (1470, 13692848), (1560, 12902876), (1568, 12837045), (1680, 11981242), (1820, 11059608), (1911, 10532960), (1960, 10269636), (2080, 9677157), (2184, 9216340), (2352, 8558030), (2548, 7899720), (2730, 7373072), (2912, 6912255), (2940, 6846424), (3120, 6451438), (3185, 6319776), (3360, 5990621), (3640, 5529804), (3822, 5266480), (3920, 5134818), (4368, 4608170), (4704, 4279015), (5096, 3949860), (5460, 3686536), (5880, 3423212), (6240, 3225719), (6370, 3159888), (7280, 2764902), (7644, 2633240), (7840, 2567409), (8736, 2304085), (9555, 2106592), (10192, 1974930), (10920, 1843268), (11760, 1711606), (12740, 1579944), (14560, 1382451), (15288, 1316620), (19110, 1053296), (20384, 987465), (21840, 921634), (23520, 855803), (25480, 789972), (30576, 658310), (38220, 526648), (43680, 460817), (50960, 394986), (61152, 329155), (65831, 305760), (76440, 263324), (101920, 197493), (131662, 152880)]