20490825

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{5813}}^1$

素因数の和:5873

約数の個数: 24

約数和(自身を含む): 34604928

約数和(自身を除く): 14114103

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 5813, 17439, 29065, 87195, 145325, 273211, 435975, 819633, 1366055, 4098165, 6830275, 20490825]

約数ペア:

[(1, 20490825), (3, 6830275), (5, 4098165), (15, 1366055), (25, 819633), (47, 435975), (75, 273211), (141, 145325), (235, 87195), (705, 29065), (1175, 17439), (3525, 5813)]