28251080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:495

約数の個数: 96

約数和(自身を含む): 75411000

約数和(自身を除く): 47159920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 121, 130, 143, 220, 242, 260, 286, 440, 449, 484, 520, 572, 605, 715, 898, 968, 1144, 1210, 1430, 1573, 1796, 2245, 2420, 2860, 3146, 3592, 4490, 4840, 4939, 5720, 5837, 6292, 7865, 8980, 9878, 11674, 12584, 15730, 17960, 19756, 23348, 24695, 29185, 31460, 39512, 46696, 49390, 54329, 58370, 62920, 64207, 98780, 108658, 116740, 128414, 197560, 217316, 233480, 256828, 271645, 321035, 434632, 513656, 543290, 642070, 706277, 1086580, 1284140, 1412554, 2173160, 2568280, 2825108, 3531385, 5650216, 7062770, 14125540, 28251080]

約数ペア:

[(1, 28251080), (2, 14125540), (4, 7062770), (5, 5650216), (8, 3531385), (10, 2825108), (11, 2568280), (13, 2173160), (20, 1412554), (22, 1284140), (26, 1086580), (40, 706277), (44, 642070), (52, 543290), (55, 513656), (65, 434632), (88, 321035), (104, 271645), (110, 256828), (121, 233480), (130, 217316), (143, 197560), (220, 128414), (242, 116740), (260, 108658), (286, 98780), (440, 64207), (449, 62920), (484, 58370), (520, 54329), (572, 49390), (605, 46696), (715, 39512), (898, 31460), (968, 29185), (1144, 24695), (1210, 23348), (1430, 19756), (1573, 17960), (1796, 15730), (2245, 12584), (2420, 11674), (2860, 9878), (3146, 8980), (3592, 7865), (4490, 6292), (4840, 5837), (4939, 5720)]