161681520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{673}}^1$

素因数の和:720

約数の個数: 320

約数和(自身を含む): 673956864

約数和(自身を除く): 512275344

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 48, 52, 55, 56, 60, 65, 66, 70, 77, 78, 80, 84, 88, 91, 104, 105, 110, 112, 120, 130, 132, 140, 143, 154, 156, 165, 168, 176, 182, 195, 208, 210, 220, 231, 240, 260, 264, 273, 280, 286, 308, 312, 330, 336, 364, 385, 390, 420, 429, 440, 455, 462, 520, 528, 546, 560, 572, 616, 624, 660, 673, 715, 728, 770, 780, 840, 858, 880, 910, 924, 1001, 1040, 1092, 1144, 1155, 1232, 1320, 1346, 1365, 1430, 1456, 1540, 1560, 1680, 1716, 1820, 1848, 2002, 2019, 2145, 2184, 2288, 2310, 2640, 2692, 2730, 2860, 3003, 3080, 3120, 3365, 3432, 3640, 3696, 4004, 4038, 4290, 4368, 4620, 4711, 5005, 5384, 5460, 5720, 6006, 6160, 6730, 6864, 7280, 7403, 8008, 8076, 8580, 8749, 9240, 9422, 10010, 10095, 10768, 10920, 11440, 12012, 13460, 14133, 14806, 15015, 16016, 16152, 17160, 17498, 18480, 18844, 20020, 20190, 21840, 22209, 23555, 24024, 26247, 26920, 28266, 29612, 30030, 32304, 34320, 34996, 37015, 37688, 40040, 40380, 43745, 44418, 47110, 48048, 51821, 52494, 53840, 56532, 59224, 60060, 61243, 69992, 70665, 74030, 75376, 80080, 80760, 87490, 88836, 94220, 96239, 103642, 104988, 111045, 113064, 118448, 120120, 122486, 131235, 139984, 141330, 148060, 155463, 161520, 174980, 177672, 183729, 188440, 192478, 207284, 209976, 222090, 226128, 240240, 244972, 259105, 262470, 282660, 288717, 296120, 306215, 310926, 349960, 355344, 367458, 376880, 384956, 414568, 419952, 444180, 481195, 489944, 518210, 524940, 565320, 577434, 592240, 612430, 621852, 673673, 699920, 734916, 769912, 777315, 829136, 888360, 918645, 962390, 979888, 1036420, 1049880, 1130640, 1154868, 1224860, 1243704, 1347346, 1443585, 1469832, 1539824, 1554630, 1776720, 1837290, 1924780, 2021019, 2072840, 2099760, 2309736, 2449720, 2487408, 2694692, 2887170, 2939664, 3109260, 3368365, 3674580, 3849560, 4042038, 4145680, 4619472, 4899440, 5389384, 5774340, 6218520, 6736730, 7349160, 7699120, 8084076, 10105095, 10778768, 11548680, 12437040, 13473460, 14698320, 16168152, 20210190, 23097360, 26946920, 32336304, 40420380, 53893840, 80840760, 161681520]

約数ペア:

[(1, 161681520), (2, 80840760), (3, 53893840), (4, 40420380), (5, 32336304), (6, 26946920), (7, 23097360), (8, 20210190), (10, 16168152), (11, 14698320), (12, 13473460), (13, 12437040), (14, 11548680), (15, 10778768), (16, 10105095), (20, 8084076), (21, 7699120), (22, 7349160), (24, 6736730), (26, 6218520), (28, 5774340), (30, 5389384), (33, 4899440), (35, 4619472), (39, 4145680), (40, 4042038), (42, 3849560), (44, 3674580), (48, 3368365), (52, 3109260), (55, 2939664), (56, 2887170), (60, 2694692), (65, 2487408), (66, 2449720), (70, 2309736), (77, 2099760), (78, 2072840), (80, 2021019), (84, 1924780), (88, 1837290), (91, 1776720), (104, 1554630), (105, 1539824), (110, 1469832), (112, 1443585), (120, 1347346), (130, 1243704), (132, 1224860), (140, 1154868), (143, 1130640), (154, 1049880), (156, 1036420), (165, 979888), (168, 962390), (176, 918645), (182, 888360), (195, 829136), (208, 777315), (210, 769912), (220, 734916), (231, 699920), (240, 673673), (260, 621852), (264, 612430), (273, 592240), (280, 577434), (286, 565320), (308, 524940), (312, 518210), (330, 489944), (336, 481195), (364, 444180), (385, 419952), (390, 414568), (420, 384956), (429, 376880), (440, 367458), (455, 355344), (462, 349960), (520, 310926), (528, 306215), (546, 296120), (560, 288717), (572, 282660), (616, 262470), (624, 259105), (660, 244972), (673, 240240), (715, 226128), (728, 222090), (770, 209976), (780, 207284), (840, 192478), (858, 188440), (880, 183729), (910, 177672), (924, 174980), (1001, 161520), (1040, 155463), (1092, 148060), (1144, 141330), (1155, 139984), (1232, 131235), (1320, 122486), (1346, 120120), (1365, 118448), (1430, 113064), (1456, 111045), (1540, 104988), (1560, 103642), (1680, 96239), (1716, 94220), (1820, 88836), (1848, 87490), (2002, 80760), (2019, 80080), (2145, 75376), (2184, 74030), (2288, 70665), (2310, 69992), (2640, 61243), (2692, 60060), (2730, 59224), (2860, 56532), (3003, 53840), (3080, 52494), (3120, 51821), (3365, 48048), (3432, 47110), (3640, 44418), (3696, 43745), (4004, 40380), (4038, 40040), (4290, 37688), (4368, 37015), (4620, 34996), (4711, 34320), (5005, 32304), (5384, 30030), (5460, 29612), (5720, 28266), (6006, 26920), (6160, 26247), (6730, 24024), (6864, 23555), (7280, 22209), (7403, 21840), (8008, 20190), (8076, 20020), (8580, 18844), (8749, 18480), (9240, 17498), (9422, 17160), (10010, 16152), (10095, 16016), (10768, 15015), (10920, 14806), (11440, 14133), (12012, 13460)]