81917820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{455099}}^1$

素因数の和:455114

約数の個数: 36

約数和(自身を含む): 248484600

約数和(自身を除く): 166566780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 455099, 910198, 1365297, 1820396, 2275495, 2730594, 4095891, 4550990, 5461188, 6826485, 8191782, 9101980, 13652970, 16383564, 20479455, 27305940, 40958910, 81917820]

約数ペア:

[(1, 81917820), (2, 40958910), (3, 27305940), (4, 20479455), (5, 16383564), (6, 13652970), (9, 9101980), (10, 8191782), (12, 6826485), (15, 5461188), (18, 4550990), (20, 4095891), (30, 2730594), (36, 2275495), (45, 1820396), (60, 1365297), (90, 910198), (180, 455099)]