28459260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{709}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 86835840

約数和(自身を除く): 58376580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 709, 892, 1115, 1338, 1418, 2007, 2127, 2230, 2676, 2836, 3345, 3545, 4014, 4254, 4460, 6381, 6690, 7090, 8028, 8508, 10035, 10635, 12762, 13380, 14180, 20070, 21270, 25524, 31905, 40140, 42540, 63810, 127620, 158107, 316214, 474321, 632428, 790535, 948642, 1422963, 1581070, 1897284, 2371605, 2845926, 3162140, 4743210, 5691852, 7114815, 9486420, 14229630, 28459260]

約数ペア:

[(1, 28459260), (2, 14229630), (3, 9486420), (4, 7114815), (5, 5691852), (6, 4743210), (9, 3162140), (10, 2845926), (12, 2371605), (15, 1897284), (18, 1581070), (20, 1422963), (30, 948642), (36, 790535), (45, 632428), (60, 474321), (90, 316214), (180, 158107), (223, 127620), (446, 63810), (669, 42540), (709, 40140), (892, 31905), (1115, 25524), (1338, 21270), (1418, 20070), (2007, 14180), (2127, 13380), (2230, 12762), (2676, 10635), (2836, 10035), (3345, 8508), (3545, 8028), (4014, 7090), (4254, 6690), (4460, 6381)]