81981825

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{953}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 143847936

約数和(自身を除く): 61866111

約数列:

[1, 3, 5, 15, 25, 31, 37, 75, 93, 111, 155, 185, 465, 555, 775, 925, 953, 1147, 2325, 2775, 2859, 3441, 4765, 5735, 14295, 17205, 23825, 28675, 29543, 35261, 71475, 86025, 88629, 105783, 147715, 176305, 443145, 528915, 738575, 881525, 1093091, 2215725, 2644575, 3279273, 5465455, 16396365, 27327275, 81981825]

約数ペア:

[(1, 81981825), (3, 27327275), (5, 16396365), (15, 5465455), (25, 3279273), (31, 2644575), (37, 2215725), (75, 1093091), (93, 881525), (111, 738575), (155, 528915), (185, 443145), (465, 176305), (555, 147715), (775, 105783), (925, 88629), (953, 86025), (1147, 71475), (2325, 35261), (2775, 29543), (2859, 28675), (3441, 23825), (4765, 17205), (5735, 14295)]