290499272

素因数分解:

$2^3\times 7^1\times {\mathrm{5187487}}^1$

素因数の和:5187500

約数の個数: 16

約数和(自身を含む): 622498560

約数和(自身を除く): 331999288

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 5187487, 10374974, 20749948, 36312409, 41499896, 72624818, 145249636, 290499272]

約数ペア:

[(1, 290499272), (2, 145249636), (4, 72624818), (7, 41499896), (8, 36312409), (14, 20749948), (28, 10374974), (56, 5187487)]