1920425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 2708160

約数和(自身を除く): 787735

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 311, 325, 475, 1235, 1555, 4043, 5909, 6175, 7775, 20215, 29545, 76817, 101075, 147725, 384085, 1920425]

約数ペア:

[(1, 1920425), (5, 384085), (13, 147725), (19, 101075), (25, 76817), (65, 29545), (95, 20215), (247, 7775), (311, 6175), (325, 5909), (475, 4043), (1235, 1555)]