18599080

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{947}}^1$

素因数の和:1449

約数の個数: 32

約数和(自身を含む): 41977440

約数和(自身を除く): 23378360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 947, 982, 1894, 1964, 2455, 3788, 3928, 4735, 4910, 7576, 9470, 9820, 18940, 19640, 37880, 464977, 929954, 1859908, 2324885, 3719816, 4649770, 9299540, 18599080]

約数ペア:

[(1, 18599080), (2, 9299540), (4, 4649770), (5, 3719816), (8, 2324885), (10, 1859908), (20, 929954), (40, 464977), (491, 37880), (947, 19640), (982, 18940), (1894, 9820), (1964, 9470), (2455, 7576), (3788, 4910), (3928, 4735)]