639908880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{647}}^1$

素因数の和:993

約数の個数: 160

約数和(自身を含む): 2146362624

約数和(自身を除く): 1506453744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 317, 390, 520, 624, 634, 647, 780, 951, 1040, 1268, 1294, 1560, 1585, 1902, 1941, 2536, 2588, 3120, 3170, 3235, 3804, 3882, 4121, 4755, 5072, 5176, 6340, 6470, 7608, 7764, 8242, 8411, 9510, 9705, 10352, 12363, 12680, 12940, 15216, 15528, 16484, 16822, 19020, 19410, 20605, 24726, 25233, 25360, 25880, 31056, 32968, 33644, 38040, 38820, 41210, 42055, 49452, 50466, 51760, 61815, 65936, 67288, 76080, 77640, 82420, 84110, 98904, 100932, 123630, 126165, 134576, 155280, 164840, 168220, 197808, 201864, 205099, 247260, 252330, 329680, 336440, 403728, 410198, 494520, 504660, 615297, 672880, 820396, 989040, 1009320, 1025495, 1230594, 1640792, 2018640, 2050990, 2461188, 2666287, 3076485, 3281584, 4101980, 4922376, 5332574, 6152970, 7998861, 8203960, 9844752, 10665148, 12305940, 13331435, 15997722, 16407920, 21330296, 24611880, 26662870, 31995444, 39994305, 42660592, 49223760, 53325740, 63990888, 79988610, 106651480, 127981776, 159977220, 213302960, 319954440, 639908880]

約数ペア:

[(1, 639908880), (2, 319954440), (3, 213302960), (4, 159977220), (5, 127981776), (6, 106651480), (8, 79988610), (10, 63990888), (12, 53325740), (13, 49223760), (15, 42660592), (16, 39994305), (20, 31995444), (24, 26662870), (26, 24611880), (30, 21330296), (39, 16407920), (40, 15997722), (48, 13331435), (52, 12305940), (60, 10665148), (65, 9844752), (78, 8203960), (80, 7998861), (104, 6152970), (120, 5332574), (130, 4922376), (156, 4101980), (195, 3281584), (208, 3076485), (240, 2666287), (260, 2461188), (312, 2050990), (317, 2018640), (390, 1640792), (520, 1230594), (624, 1025495), (634, 1009320), (647, 989040), (780, 820396), (951, 672880), (1040, 615297), (1268, 504660), (1294, 494520), (1560, 410198), (1585, 403728), (1902, 336440), (1941, 329680), (2536, 252330), (2588, 247260), (3120, 205099), (3170, 201864), (3235, 197808), (3804, 168220), (3882, 164840), (4121, 155280), (4755, 134576), (5072, 126165), (5176, 123630), (6340, 100932), (6470, 98904), (7608, 84110), (7764, 82420), (8242, 77640), (8411, 76080), (9510, 67288), (9705, 65936), (10352, 61815), (12363, 51760), (12680, 50466), (12940, 49452), (15216, 42055), (15528, 41210), (16484, 38820), (16822, 38040), (19020, 33644), (19410, 32968), (20605, 31056), (24726, 25880), (25233, 25360)]