20802210512

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{11927873}}^1$

素因数の和:11927990

約数の個数: 20

約数和(自身を含む): 40674050340

約数和(自身を除く): 19871839828

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 11927873, 23855746, 47711492, 95422984, 190845968, 1300138157, 2600276314, 5200552628, 10401105256, 20802210512]

約数ペア:

[(1, 20802210512), (2, 10401105256), (4, 5200552628), (8, 2600276314), (16, 1300138157), (109, 190845968), (218, 95422984), (436, 47711492), (872, 23855746), (1744, 11927873)]