12986660

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1013}}^1$

素因数の和:1663

約数の個数: 24

約数和(自身を含む): 27341496

約数和(自身を除く): 14354836

約数列:

[1, 2, 4, 5, 10, 20, 641, 1013, 1282, 2026, 2564, 3205, 4052, 5065, 6410, 10130, 12820, 20260, 649333, 1298666, 2597332, 3246665, 6493330, 12986660]

約数ペア:

[(1, 12986660), (2, 6493330), (4, 3246665), (5, 2597332), (10, 1298666), (20, 649333), (641, 20260), (1013, 12820), (1282, 10130), (2026, 6410), (2564, 5065), (3205, 4052)]