28909240

素因数分解:

$2^3\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1031}}^1$

素因数の和:1743

約数の個数: 32

約数和(自身を含む): 65201760

約数和(自身を除く): 36292520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 701, 1031, 1402, 2062, 2804, 3505, 4124, 5155, 5608, 7010, 8248, 10310, 14020, 20620, 28040, 41240, 722731, 1445462, 2890924, 3613655, 5781848, 7227310, 14454620, 28909240]

約数ペア:

[(1, 28909240), (2, 14454620), (4, 7227310), (5, 5781848), (8, 3613655), (10, 2890924), (20, 1445462), (40, 722731), (701, 41240), (1031, 28040), (1402, 20620), (2062, 14020), (2804, 10310), (3505, 8248), (4124, 7010), (5155, 5608)]