20475408

素因数分解:

$2^4\times 3^1\times {\mathrm{163}}^1\times {\mathrm{2617}}^1$

素因数の和:2791

約数の個数: 40

約数和(自身を含む): 53239648

約数和(自身を除く): 32764240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 163, 326, 489, 652, 978, 1304, 1956, 2608, 2617, 3912, 5234, 7824, 7851, 10468, 15702, 20936, 31404, 41872, 62808, 125616, 426571, 853142, 1279713, 1706284, 2559426, 3412568, 5118852, 6825136, 10237704, 20475408]

約数ペア:

[(1, 20475408), (2, 10237704), (3, 6825136), (4, 5118852), (6, 3412568), (8, 2559426), (12, 1706284), (16, 1279713), (24, 853142), (48, 426571), (163, 125616), (326, 62808), (489, 41872), (652, 31404), (978, 20936), (1304, 15702), (1956, 10468), (2608, 7851), (2617, 7824), (3912, 5234)]