871755280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{990631}}^1$

素因数の和:990655

約数の個数: 40

約数和(自身を含む): 2211090624

約数和(自身を除く): 1339335344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 990631, 1981262, 3962524, 4953155, 7925048, 9906310, 10896941, 15850096, 19812620, 21793882, 39625240, 43587764, 54484705, 79250480, 87175528, 108969410, 174351056, 217938820, 435877640, 871755280]

約数ペア:

[(1, 871755280), (2, 435877640), (4, 217938820), (5, 174351056), (8, 108969410), (10, 87175528), (11, 79250480), (16, 54484705), (20, 43587764), (22, 39625240), (40, 21793882), (44, 19812620), (55, 15850096), (80, 10896941), (88, 9906310), (110, 7925048), (176, 4953155), (220, 3962524), (440, 1981262), (880, 990631)]