661606960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1657}}^1$

素因数の和:1731

約数の個数: 160

約数和(自身を含む): 1894735872

約数和(自身を除く): 1233128912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 31, 35, 40, 46, 56, 62, 70, 80, 92, 112, 115, 124, 140, 155, 161, 184, 217, 230, 248, 280, 310, 322, 368, 434, 460, 496, 560, 620, 644, 713, 805, 868, 920, 1085, 1240, 1288, 1426, 1610, 1657, 1736, 1840, 2170, 2480, 2576, 2852, 3220, 3314, 3472, 3565, 4340, 4991, 5704, 6440, 6628, 7130, 8285, 8680, 9982, 11408, 11599, 12880, 13256, 14260, 16570, 17360, 19964, 23198, 24955, 26512, 28520, 33140, 38111, 39928, 46396, 49910, 51367, 57040, 57995, 66280, 76222, 79856, 92792, 99820, 102734, 115990, 132560, 152444, 185584, 190555, 199640, 205468, 231980, 256835, 266777, 304888, 359569, 381110, 399280, 410936, 463960, 513670, 533554, 609776, 719138, 762220, 821872, 927920, 1027340, 1067108, 1181441, 1333885, 1438276, 1524440, 1797845, 2054680, 2134216, 2362882, 2667770, 2876552, 3048880, 3595690, 4109360, 4268432, 4725764, 5335540, 5753104, 5907205, 7191380, 8270087, 9451528, 10671080, 11814410, 14382760, 16540174, 18903056, 21342160, 23628820, 28765520, 33080348, 41350435, 47257640, 66160696, 82700870, 94515280, 132321392, 165401740, 330803480, 661606960]

約数ペア:

[(1, 661606960), (2, 330803480), (4, 165401740), (5, 132321392), (7, 94515280), (8, 82700870), (10, 66160696), (14, 47257640), (16, 41350435), (20, 33080348), (23, 28765520), (28, 23628820), (31, 21342160), (35, 18903056), (40, 16540174), (46, 14382760), (56, 11814410), (62, 10671080), (70, 9451528), (80, 8270087), (92, 7191380), (112, 5907205), (115, 5753104), (124, 5335540), (140, 4725764), (155, 4268432), (161, 4109360), (184, 3595690), (217, 3048880), (230, 2876552), (248, 2667770), (280, 2362882), (310, 2134216), (322, 2054680), (368, 1797845), (434, 1524440), (460, 1438276), (496, 1333885), (560, 1181441), (620, 1067108), (644, 1027340), (713, 927920), (805, 821872), (868, 762220), (920, 719138), (1085, 609776), (1240, 533554), (1288, 513670), (1426, 463960), (1610, 410936), (1657, 399280), (1736, 381110), (1840, 359569), (2170, 304888), (2480, 266777), (2576, 256835), (2852, 231980), (3220, 205468), (3314, 199640), (3472, 190555), (3565, 185584), (4340, 152444), (4991, 132560), (5704, 115990), (6440, 102734), (6628, 99820), (7130, 92792), (8285, 79856), (8680, 76222), (9982, 66280), (11408, 57995), (11599, 57040), (12880, 51367), (13256, 49910), (14260, 46396), (16570, 39928), (17360, 38111), (19964, 33140), (23198, 28520), (24955, 26512)]