81587475

素因数分解:

$3^2\times 5^2\times {\mathrm{349}}^1\times {\mathrm{1039}}^1$

素因数の和:1404

約数の個数: 36

約数和(自身を含む): 146692000

約数和(自身を除く): 65104525

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 349, 1039, 1047, 1745, 3117, 3141, 5195, 5235, 8725, 9351, 15585, 15705, 25975, 26175, 46755, 77925, 78525, 233775, 362611, 1087833, 1813055, 3263499, 5439165, 9065275, 16317495, 27195825, 81587475]

約数ペア:

[(1, 81587475), (3, 27195825), (5, 16317495), (9, 9065275), (15, 5439165), (25, 3263499), (45, 1813055), (75, 1087833), (225, 362611), (349, 233775), (1039, 78525), (1047, 77925), (1745, 46755), (3117, 26175), (3141, 25975), (5195, 15705), (5235, 15585), (8725, 9351)]