81743080

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6529}}^1$

素因数の和:6853

約数の個数: 32

約数和(自身を含む): 184537800

約数和(自身を除く): 102794720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 6529, 12520, 13058, 26116, 32645, 52232, 65290, 130580, 261160, 2043577, 4087154, 8174308, 10217885, 16348616, 20435770, 40871540, 81743080]

約数ペア:

[(1, 81743080), (2, 40871540), (4, 20435770), (5, 16348616), (8, 10217885), (10, 8174308), (20, 4087154), (40, 2043577), (313, 261160), (626, 130580), (1252, 65290), (1565, 52232), (2504, 32645), (3130, 26116), (6260, 13058), (6529, 12520)]