40691320

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^2\times {\mathrm{163}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 93297960

約数和(自身を除く): 52606640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 163, 316, 326, 395, 632, 652, 790, 815, 1304, 1580, 1630, 3160, 3260, 6241, 6520, 12482, 12877, 24964, 25754, 31205, 49928, 51508, 62410, 64385, 103016, 124820, 128770, 249640, 257540, 515080, 1017283, 2034566, 4069132, 5086415, 8138264, 10172830, 20345660, 40691320]

約数ペア:

[(1, 40691320), (2, 20345660), (4, 10172830), (5, 8138264), (8, 5086415), (10, 4069132), (20, 2034566), (40, 1017283), (79, 515080), (158, 257540), (163, 249640), (316, 128770), (326, 124820), (395, 103016), (632, 64385), (652, 62410), (790, 51508), (815, 49928), (1304, 31205), (1580, 25754), (1630, 24964), (3160, 12877), (3260, 12482), (6241, 6520)]