518274140

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{40427}}^1$

素因数の和:41077

約数の個数: 24

約数和(自身を含む): 1090100592

約数和(自身を除く): 571826452

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 40427, 80854, 161708, 202135, 404270, 808540, 25913707, 51827414, 103654828, 129568535, 259137070, 518274140]

約数ペア:

[(1, 518274140), (2, 259137070), (4, 129568535), (5, 103654828), (10, 51827414), (20, 25913707), (641, 808540), (1282, 404270), (2564, 202135), (3205, 161708), (6410, 80854), (12820, 40427)]