8945420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{557}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 20811168

約数和(自身を除く): 11865748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 557, 730, 803, 1114, 1460, 1606, 2228, 2785, 3212, 4015, 5570, 6127, 8030, 11140, 12254, 16060, 24508, 30635, 40661, 61270, 81322, 122540, 162644, 203305, 406610, 447271, 813220, 894542, 1789084, 2236355, 4472710, 8945420]

約数ペア:

[(1, 8945420), (2, 4472710), (4, 2236355), (5, 1789084), (10, 894542), (11, 813220), (20, 447271), (22, 406610), (44, 203305), (55, 162644), (73, 122540), (110, 81322), (146, 61270), (220, 40661), (292, 30635), (365, 24508), (557, 16060), (730, 12254), (803, 11140), (1114, 8030), (1460, 6127), (1606, 5570), (2228, 4015), (2785, 3212)]