28257310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{701}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 53071200

約数和(自身を除く): 24813890

約数列:

[1, 2, 5, 10, 29, 58, 139, 145, 278, 290, 695, 701, 1390, 1402, 3505, 4031, 7010, 8062, 20155, 20329, 40310, 40658, 97439, 101645, 194878, 203290, 487195, 974390, 2825731, 5651462, 14128655, 28257310]

約数ペア:

[(1, 28257310), (2, 14128655), (5, 5651462), (10, 2825731), (29, 974390), (58, 487195), (139, 203290), (145, 194878), (278, 101645), (290, 97439), (695, 40658), (701, 40310), (1390, 20329), (1402, 20155), (3505, 8062), (4031, 7010)]