31415740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1759}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 70963200

約数和(自身を除く): 39547460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1759, 1786, 3518, 3572, 4465, 7036, 8795, 8930, 17590, 17860, 33421, 35180, 66842, 82673, 133684, 165346, 167105, 330692, 334210, 413365, 668420, 826730, 1570787, 1653460, 3141574, 6283148, 7853935, 15707870, 31415740]

約数ペア:

[(1, 31415740), (2, 15707870), (4, 7853935), (5, 6283148), (10, 3141574), (19, 1653460), (20, 1570787), (38, 826730), (47, 668420), (76, 413365), (94, 334210), (95, 330692), (188, 167105), (190, 165346), (235, 133684), (380, 82673), (470, 66842), (893, 35180), (940, 33421), (1759, 17860), (1786, 17590), (3518, 8930), (3572, 8795), (4465, 7036)]