12220820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 27675648

約数和(自身を除く): 15454828

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 857, 1426, 1714, 2852, 3428, 3565, 4285, 7130, 8570, 14260, 17140, 19711, 26567, 39422, 53134, 78844, 98555, 106268, 132835, 197110, 265670, 394220, 531340, 611041, 1222082, 2444164, 3055205, 6110410, 12220820]

約数ペア:

[(1, 12220820), (2, 6110410), (4, 3055205), (5, 2444164), (10, 1222082), (20, 611041), (23, 531340), (31, 394220), (46, 265670), (62, 197110), (92, 132835), (115, 106268), (124, 98555), (155, 78844), (230, 53134), (310, 39422), (460, 26567), (620, 19711), (713, 17140), (857, 14260), (1426, 8570), (1714, 7130), (2852, 4285), (3428, 3565)]