81024490

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 149143680

約数和(自身を除く): 68119190

約数列:

[1, 2, 5, 10, 71, 139, 142, 278, 355, 695, 710, 821, 1390, 1642, 4105, 8210, 9869, 19738, 49345, 58291, 98690, 114119, 116582, 228238, 291455, 570595, 582910, 1141190, 8102449, 16204898, 40512245, 81024490]

約数ペア:

[(1, 81024490), (2, 40512245), (5, 16204898), (10, 8102449), (71, 1141190), (139, 582910), (142, 570595), (278, 291455), (355, 228238), (695, 116582), (710, 114119), (821, 98690), (1390, 58291), (1642, 49345), (4105, 19738), (8210, 9869)]