19509840

素因数分解:

$2^4\times 3^2\times 5^1\times 7^3\times {\mathrm{79}}^1$

素因数の和:119

約数の個数: 240

約数和(自身を含む): 77376000

約数和(自身を除く): 57866160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 79, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 158, 168, 180, 196, 210, 237, 240, 245, 252, 280, 294, 315, 316, 336, 343, 360, 392, 395, 420, 441, 474, 490, 504, 553, 560, 588, 630, 632, 686, 711, 720, 735, 784, 790, 840, 882, 948, 980, 1008, 1029, 1106, 1176, 1185, 1260, 1264, 1372, 1422, 1470, 1580, 1659, 1680, 1715, 1764, 1896, 1960, 2058, 2205, 2212, 2352, 2370, 2520, 2744, 2765, 2844, 2940, 3087, 3160, 3318, 3430, 3528, 3555, 3792, 3871, 3920, 4116, 4410, 4424, 4740, 4977, 5040, 5145, 5488, 5530, 5688, 5880, 6174, 6320, 6636, 6860, 7056, 7110, 7742, 8232, 8295, 8820, 8848, 9480, 9954, 10290, 11060, 11376, 11613, 11760, 12348, 13272, 13720, 14220, 15435, 15484, 16464, 16590, 17640, 18960, 19355, 19908, 20580, 22120, 23226, 24696, 24885, 26544, 27097, 27440, 28440, 30870, 30968, 33180, 34839, 35280, 38710, 39816, 41160, 44240, 46452, 49392, 49770, 54194, 56880, 58065, 61740, 61936, 66360, 69678, 77420, 79632, 81291, 82320, 92904, 99540, 108388, 116130, 123480, 132720, 135485, 139356, 154840, 162582, 174195, 185808, 199080, 216776, 232260, 243873, 246960, 270970, 278712, 309680, 325164, 348390, 398160, 406455, 433552, 464520, 487746, 541940, 557424, 650328, 696780, 812910, 929040, 975492, 1083880, 1219365, 1300656, 1393560, 1625820, 1950984, 2167760, 2438730, 2787120, 3251640, 3901968, 4877460, 6503280, 9754920, 19509840]

約数ペア:

[(1, 19509840), (2, 9754920), (3, 6503280), (4, 4877460), (5, 3901968), (6, 3251640), (7, 2787120), (8, 2438730), (9, 2167760), (10, 1950984), (12, 1625820), (14, 1393560), (15, 1300656), (16, 1219365), (18, 1083880), (20, 975492), (21, 929040), (24, 812910), (28, 696780), (30, 650328), (35, 557424), (36, 541940), (40, 487746), (42, 464520), (45, 433552), (48, 406455), (49, 398160), (56, 348390), (60, 325164), (63, 309680), (70, 278712), (72, 270970), (79, 246960), (80, 243873), (84, 232260), (90, 216776), (98, 199080), (105, 185808), (112, 174195), (120, 162582), (126, 154840), (140, 139356), (144, 135485), (147, 132720), (158, 123480), (168, 116130), (180, 108388), (196, 99540), (210, 92904), (237, 82320), (240, 81291), (245, 79632), (252, 77420), (280, 69678), (294, 66360), (315, 61936), (316, 61740), (336, 58065), (343, 56880), (360, 54194), (392, 49770), (395, 49392), (420, 46452), (441, 44240), (474, 41160), (490, 39816), (504, 38710), (553, 35280), (560, 34839), (588, 33180), (630, 30968), (632, 30870), (686, 28440), (711, 27440), (720, 27097), (735, 26544), (784, 24885), (790, 24696), (840, 23226), (882, 22120), (948, 20580), (980, 19908), (1008, 19355), (1029, 18960), (1106, 17640), (1176, 16590), (1185, 16464), (1260, 15484), (1264, 15435), (1372, 14220), (1422, 13720), (1470, 13272), (1580, 12348), (1659, 11760), (1680, 11613), (1715, 11376), (1764, 11060), (1896, 10290), (1960, 9954), (2058, 9480), (2205, 8848), (2212, 8820), (2352, 8295), (2370, 8232), (2520, 7742), (2744, 7110), (2765, 7056), (2844, 6860), (2940, 6636), (3087, 6320), (3160, 6174), (3318, 5880), (3430, 5688), (3528, 5530), (3555, 5488), (3792, 5145), (3871, 5040), (3920, 4977), (4116, 4740), (4410, 4424)]