280178260

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{42323}}^1$

素因数の和:42663

約数の個数: 24

約数和(自身を含む): 590165856

約数和(自身を除く): 309987596

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 42323, 84646, 169292, 211615, 423230, 846460, 14008913, 28017826, 56035652, 70044565, 140089130, 280178260]

約数ペア:

[(1, 280178260), (2, 140089130), (4, 70044565), (5, 56035652), (10, 28017826), (20, 14008913), (331, 846460), (662, 423230), (1324, 211615), (1655, 169292), (3310, 84646), (6620, 42323)]