28818375

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 51597312

約数和(自身を除く): 22778937

約数列:

[1, 3, 5, 15, 25, 31, 37, 67, 75, 93, 111, 125, 155, 185, 201, 335, 375, 465, 555, 775, 925, 1005, 1147, 1675, 2077, 2325, 2479, 2775, 3441, 3875, 4625, 5025, 5735, 6231, 7437, 8375, 10385, 11625, 12395, 13875, 17205, 25125, 28675, 31155, 37185, 51925, 61975, 76849, 86025, 143375, 155775, 185925, 230547, 259625, 309875, 384245, 430125, 778875, 929625, 1152735, 1921225, 5763675, 9606125, 28818375]

約数ペア:

[(1, 28818375), (3, 9606125), (5, 5763675), (15, 1921225), (25, 1152735), (31, 929625), (37, 778875), (67, 430125), (75, 384245), (93, 309875), (111, 259625), (125, 230547), (155, 185925), (185, 155775), (201, 143375), (335, 86025), (375, 76849), (465, 61975), (555, 51925), (775, 37185), (925, 31155), (1005, 28675), (1147, 25125), (1675, 17205), (2077, 13875), (2325, 12395), (2479, 11625), (2775, 10385), (3441, 8375), (3875, 7437), (4625, 6231), (5025, 5735)]