12628240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3671}}^1$

素因数の和:3727

約数の個数: 40

約数和(自身を含む): 30051648

約数和(自身を除く): 17423408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 3671, 7342, 14684, 18355, 29368, 36710, 58736, 73420, 146840, 157853, 293680, 315706, 631412, 789265, 1262824, 1578530, 2525648, 3157060, 6314120, 12628240]

約数ペア:

[(1, 12628240), (2, 6314120), (4, 3157060), (5, 2525648), (8, 1578530), (10, 1262824), (16, 789265), (20, 631412), (40, 315706), (43, 293680), (80, 157853), (86, 146840), (172, 73420), (215, 58736), (344, 36710), (430, 29368), (688, 18355), (860, 14684), (1720, 7342), (3440, 3671)]