31043205

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 56174976

約数和(自身を除く): 25131771

約数列:

[1, 3, 5, 9, 15, 43, 45, 61, 129, 183, 215, 263, 305, 387, 549, 645, 789, 915, 1315, 1935, 2367, 2623, 2745, 3945, 7869, 11309, 11835, 13115, 16043, 23607, 33927, 39345, 48129, 56545, 80215, 101781, 118035, 144387, 169635, 240645, 508905, 689849, 721935, 2069547, 3449245, 6208641, 10347735, 31043205]

約数ペア:

[(1, 31043205), (3, 10347735), (5, 6208641), (9, 3449245), (15, 2069547), (43, 721935), (45, 689849), (61, 508905), (129, 240645), (183, 169635), (215, 144387), (263, 118035), (305, 101781), (387, 80215), (549, 56545), (645, 48129), (789, 39345), (915, 33927), (1315, 23607), (1935, 16043), (2367, 13115), (2623, 11835), (2745, 11309), (3945, 7869)]