1491980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{10657}}^1$

素因数の和:10673

約数の個数: 24

約数和(自身を含む): 3581088

約数和(自身を除く): 2089108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 10657, 21314, 42628, 53285, 74599, 106570, 149198, 213140, 298396, 372995, 745990, 1491980]

約数ペア:

[(1, 1491980), (2, 745990), (4, 372995), (5, 298396), (7, 213140), (10, 149198), (14, 106570), (20, 74599), (28, 53285), (35, 42628), (70, 21314), (140, 10657)]