204915890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{661019}}^1$

素因数の和:661057

約数の個数: 16

約数和(自身を含む): 380747520

約数和(自身を除く): 175831630

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 661019, 1322038, 3305095, 6610190, 20491589, 40983178, 102457945, 204915890]

約数ペア:

[(1, 204915890), (2, 102457945), (5, 40983178), (10, 20491589), (31, 6610190), (62, 3305095), (155, 1322038), (310, 661019)]