28020825

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{17791}}^1$

素因数の和:17814

約数の個数: 36

約数和(自身を含む): 57361408

約数和(自身を除く): 29340583

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 17791, 53373, 88955, 124537, 160119, 266865, 373611, 444775, 622685, 800595, 1120833, 1334325, 1868055, 3113425, 4002975, 5604165, 9340275, 28020825]

約数ペア:

[(1, 28020825), (3, 9340275), (5, 5604165), (7, 4002975), (9, 3113425), (15, 1868055), (21, 1334325), (25, 1120833), (35, 800595), (45, 622685), (63, 444775), (75, 373611), (105, 266865), (175, 160119), (225, 124537), (315, 88955), (525, 53373), (1575, 17791)]