1391962480

素因数分解:

$2^4\times 5^1\times {\mathrm{17399531}}^1$

素因数の和:17399544

約数の個数: 20

約数和(自身を含む): 3236312952

約数和(自身を除く): 1844350472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17399531, 34799062, 69598124, 86997655, 139196248, 173995310, 278392496, 347990620, 695981240, 1391962480]

約数ペア:

[(1, 1391962480), (2, 695981240), (4, 347990620), (5, 278392496), (8, 173995310), (10, 139196248), (16, 86997655), (20, 69598124), (40, 34799062), (80, 17399531)]