18054640

素因数分解:

$2^4\times 5^1\times {\mathrm{225683}}^1$

素因数の和:225696

約数の個数: 20

約数和(自身を含む): 41977224

約数和(自身を除く): 23922584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225683, 451366, 902732, 1128415, 1805464, 2256830, 3610928, 4513660, 9027320, 18054640]

約数ペア:

[(1, 18054640), (2, 9027320), (4, 4513660), (5, 3610928), (8, 2256830), (10, 1805464), (16, 1128415), (20, 902732), (40, 451366), (80, 225683)]