1396409870

素因数分解:

$2^1\times 5^1\times {\mathrm{4987}}^1\times {\mathrm{28001}}^1$

素因数の和:32995

約数の個数: 16

約数和(自身を含む): 2514131568

約数和(自身を除く): 1117721698

約数列:

[1, 2, 5, 10, 4987, 9974, 24935, 28001, 49870, 56002, 140005, 280010, 139640987, 279281974, 698204935, 1396409870]

約数ペア:

[(1, 1396409870), (2, 698204935), (5, 279281974), (10, 139640987), (4987, 280010), (9974, 140005), (24935, 56002), (28001, 49870)]