20115425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 27423840

約数和(自身を除く): 7308415

約数列:

[1, 5, 11, 25, 55, 193, 275, 379, 965, 1895, 2123, 4169, 4825, 9475, 10615, 20845, 53075, 73147, 104225, 365735, 804617, 1828675, 4023085, 20115425]

約数ペア:

[(1, 20115425), (5, 4023085), (11, 1828675), (25, 804617), (55, 365735), (193, 104225), (275, 73147), (379, 53075), (965, 20845), (1895, 10615), (2123, 9475), (4169, 4825)]