145136380

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{8839}}^1$

素因数の和:9669

約数の個数: 24

約数和(自身を含む): 305192160

約数和(自身を除く): 160055780

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 8839, 16420, 17678, 35356, 44195, 88390, 176780, 7256819, 14513638, 29027276, 36284095, 72568190, 145136380]

約数ペア:

[(1, 145136380), (2, 72568190), (4, 36284095), (5, 29027276), (10, 14513638), (20, 7256819), (821, 176780), (1642, 88390), (3284, 44195), (4105, 35356), (8210, 17678), (8839, 16420)]