204038840

素因数分解:

$2^3\times 5^1\times {\mathrm{5100971}}^1$

素因数の和:5100982

約数の個数: 16

約数和(自身を含む): 459087480

約数和(自身を除く): 255048640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5100971, 10201942, 20403884, 25504855, 40807768, 51009710, 102019420, 204038840]

約数ペア:

[(1, 204038840), (2, 102019420), (4, 51009710), (5, 40807768), (8, 25504855), (10, 20403884), (20, 10201942), (40, 5100971)]