204309880

素因数分解:

$2^3\times 5^1\times {\mathrm{5107747}}^1$

素因数の和:5107758

約数の個数: 16

約数和(自身を含む): 459697320

約数和(自身を除く): 255387440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5107747, 10215494, 20430988, 25538735, 40861976, 51077470, 102154940, 204309880]

約数ペア:

[(1, 204309880), (2, 102154940), (4, 51077470), (5, 40861976), (8, 25538735), (10, 20430988), (20, 10215494), (40, 5107747)]