87420080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{821}}^1$

素因数の和:867

約数の個数: 80

約数和(自身を含む): 223833888

約数和(自身を除く): 136413808

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 821, 880, 968, 1210, 1331, 1642, 1936, 2420, 2662, 3284, 4105, 4840, 5324, 6568, 6655, 8210, 9031, 9680, 10648, 13136, 13310, 16420, 18062, 21296, 26620, 32840, 36124, 45155, 53240, 65680, 72248, 90310, 99341, 106480, 144496, 180620, 198682, 361240, 397364, 496705, 722480, 794728, 993410, 1092751, 1589456, 1986820, 2185502, 3973640, 4371004, 5463755, 7947280, 8742008, 10927510, 17484016, 21855020, 43710040, 87420080]

約数ペア:

[(1, 87420080), (2, 43710040), (4, 21855020), (5, 17484016), (8, 10927510), (10, 8742008), (11, 7947280), (16, 5463755), (20, 4371004), (22, 3973640), (40, 2185502), (44, 1986820), (55, 1589456), (80, 1092751), (88, 993410), (110, 794728), (121, 722480), (176, 496705), (220, 397364), (242, 361240), (440, 198682), (484, 180620), (605, 144496), (821, 106480), (880, 99341), (968, 90310), (1210, 72248), (1331, 65680), (1642, 53240), (1936, 45155), (2420, 36124), (2662, 32840), (3284, 26620), (4105, 21296), (4840, 18062), (5324, 16420), (6568, 13310), (6655, 13136), (8210, 10648), (9031, 9680)]