18090825

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^2\times {\mathrm{251}}^1$

素因数の和:326

約数の個数: 36

約数和(自身を含む): 31029264

約数和(自身を除く): 12938439

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 251, 465, 753, 775, 961, 1255, 2325, 2883, 3765, 4805, 6275, 7781, 14415, 18825, 23343, 24025, 38905, 72075, 116715, 194525, 241211, 583575, 723633, 1206055, 3618165, 6030275, 18090825]

約数ペア:

[(1, 18090825), (3, 6030275), (5, 3618165), (15, 1206055), (25, 723633), (31, 583575), (75, 241211), (93, 194525), (155, 116715), (251, 72075), (465, 38905), (753, 24025), (775, 23343), (961, 18825), (1255, 14415), (2325, 7781), (2883, 6275), (3765, 4805)]