1620797480

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{378691}}^1$

素因数の和:378809

約数の個数: 32

約数和(自身を含む): 3680886240

約数和(自身を除く): 2060088760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 378691, 757382, 1514764, 1893455, 3029528, 3786910, 7573820, 15147640, 40519937, 81039874, 162079748, 202599685, 324159496, 405199370, 810398740, 1620797480]

約数ペア:

[(1, 1620797480), (2, 810398740), (4, 405199370), (5, 324159496), (8, 202599685), (10, 162079748), (20, 81039874), (40, 40519937), (107, 15147640), (214, 7573820), (428, 3786910), (535, 3029528), (856, 1893455), (1070, 1514764), (2140, 757382), (4280, 378691)]