18275560

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2803}}^1$

素因数の和:2977

約数の個数: 32

約数和(自身を含む): 41387040

約数和(自身を除く): 23111480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 2803, 3260, 5606, 6520, 11212, 14015, 22424, 28030, 56060, 112120, 456889, 913778, 1827556, 2284445, 3655112, 4568890, 9137780, 18275560]

約数ペア:

[(1, 18275560), (2, 9137780), (4, 4568890), (5, 3655112), (8, 2284445), (10, 1827556), (20, 913778), (40, 456889), (163, 112120), (326, 56060), (652, 28030), (815, 22424), (1304, 14015), (1630, 11212), (2803, 6520), (3260, 5606)]