204156880

素因数分解:

$2^4\times 5^1\times {\mathrm{2551961}}^1$

素因数の和:2551974

約数の個数: 20

約数和(自身を含む): 474664932

約数和(自身を除く): 270508052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2551961, 5103922, 10207844, 12759805, 20415688, 25519610, 40831376, 51039220, 102078440, 204156880]

約数ペア:

[(1, 204156880), (2, 102078440), (4, 51039220), (5, 40831376), (8, 25519610), (10, 20415688), (16, 12759805), (20, 10207844), (40, 5103922), (80, 2551961)]