28341825

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{19889}}^1$

素因数の和:19921

約数の個数: 24

約数和(自身を含む): 49327200

約数和(自身を除く): 20985375

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 19889, 59667, 99445, 298335, 377891, 497225, 1133673, 1491675, 1889455, 5668365, 9447275, 28341825]

約数ペア:

[(1, 28341825), (3, 9447275), (5, 5668365), (15, 1889455), (19, 1491675), (25, 1133673), (57, 497225), (75, 377891), (95, 298335), (285, 99445), (475, 59667), (1425, 19889)]