86990290

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{2003}}^1$

素因数の和:2154

約数の個数: 32

約数和(自身を含む): 161891136

約数和(自身を除く): 74900846

約数列:

[1, 2, 5, 10, 43, 86, 101, 202, 215, 430, 505, 1010, 2003, 4006, 4343, 8686, 10015, 20030, 21715, 43430, 86129, 172258, 202303, 404606, 430645, 861290, 1011515, 2023030, 8699029, 17398058, 43495145, 86990290]

約数ペア:

[(1, 86990290), (2, 43495145), (5, 17398058), (10, 8699029), (43, 2023030), (86, 1011515), (101, 861290), (202, 430645), (215, 404606), (430, 202303), (505, 172258), (1010, 86129), (2003, 43430), (4006, 21715), (4343, 20030), (8686, 10015)]