28746680

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4409}}^1$

素因数の和:4583

約数の個数: 32

約数和(自身を含む): 65091600

約数和(自身を除く): 36344920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4409, 6520, 8818, 17636, 22045, 35272, 44090, 88180, 176360, 718667, 1437334, 2874668, 3593335, 5749336, 7186670, 14373340, 28746680]

約数ペア:

[(1, 28746680), (2, 14373340), (4, 7186670), (5, 5749336), (8, 3593335), (10, 2874668), (20, 1437334), (40, 718667), (163, 176360), (326, 88180), (652, 44090), (815, 35272), (1304, 22045), (1630, 17636), (3260, 8818), (4409, 6520)]