31290885

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 56394624

約数和(自身を除く): 25103739

約数列:

[1, 3, 5, 9, 15, 43, 45, 103, 129, 157, 215, 309, 387, 471, 515, 645, 785, 927, 1413, 1545, 1935, 2355, 4429, 4635, 6751, 7065, 13287, 16171, 20253, 22145, 33755, 39861, 48513, 60759, 66435, 80855, 101265, 145539, 199305, 242565, 303795, 695353, 727695, 2086059, 3476765, 6258177, 10430295, 31290885]

約数ペア:

[(1, 31290885), (3, 10430295), (5, 6258177), (9, 3476765), (15, 2086059), (43, 727695), (45, 695353), (103, 303795), (129, 242565), (157, 199305), (215, 145539), (309, 101265), (387, 80855), (471, 66435), (515, 60759), (645, 48513), (785, 39861), (927, 33755), (1413, 22145), (1545, 20253), (1935, 16171), (2355, 13287), (4429, 7065), (4635, 6751)]