31170915

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 25045245

約数列:

[1, 3, 5, 9, 15, 43, 45, 89, 129, 181, 215, 267, 387, 445, 543, 645, 801, 905, 1335, 1629, 1935, 2715, 3827, 4005, 7783, 8145, 11481, 16109, 19135, 23349, 34443, 38915, 48327, 57405, 70047, 80545, 116745, 144981, 172215, 241635, 350235, 692687, 724905, 2078061, 3463435, 6234183, 10390305, 31170915]

約数ペア:

[(1, 31170915), (3, 10390305), (5, 6234183), (9, 3463435), (15, 2078061), (43, 724905), (45, 692687), (89, 350235), (129, 241635), (181, 172215), (215, 144981), (267, 116745), (387, 80545), (445, 70047), (543, 57405), (645, 48327), (801, 38915), (905, 34443), (1335, 23349), (1629, 19135), (1935, 16109), (2715, 11481), (3827, 8145), (4005, 7783)]