28909820

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3163}}^1$

素因数の和:3629

約数の個数: 24

約数和(自身を含む): 60862704

約数和(自身を除く): 31952884

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 3163, 4570, 6326, 9140, 12652, 15815, 31630, 63260, 1445491, 2890982, 5781964, 7227455, 14454910, 28909820]

約数ペア:

[(1, 28909820), (2, 14454910), (4, 7227455), (5, 5781964), (10, 2890982), (20, 1445491), (457, 63260), (914, 31630), (1828, 15815), (2285, 12652), (3163, 9140), (4570, 6326)]