181239640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{146161}}^1$

素因数の和:146203

約数の個数: 32

約数和(自身を含む): 420946560

約数和(自身を除く): 239706920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 146161, 292322, 584644, 730805, 1169288, 1461610, 2923220, 4530991, 5846440, 9061982, 18123964, 22654955, 36247928, 45309910, 90619820, 181239640]

約数ペア:

[(1, 181239640), (2, 90619820), (4, 45309910), (5, 36247928), (8, 22654955), (10, 18123964), (20, 9061982), (31, 5846440), (40, 4530991), (62, 2923220), (124, 1461610), (155, 1169288), (248, 730805), (310, 584644), (620, 292322), (1240, 146161)]