18122840

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2713}}^1$

素因数の和:2891

約数の個数: 32

約数和(自身を含む): 41035680

約数和(自身を除く): 22912840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 2713, 3340, 5426, 6680, 10852, 13565, 21704, 27130, 54260, 108520, 453071, 906142, 1812284, 2265355, 3624568, 4530710, 9061420, 18122840]

約数ペア:

[(1, 18122840), (2, 9061420), (4, 4530710), (5, 3624568), (8, 2265355), (10, 1812284), (20, 906142), (40, 453071), (167, 108520), (334, 54260), (668, 27130), (835, 21704), (1336, 13565), (1670, 10852), (2713, 6680), (3340, 5426)]