8981240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1987}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 20396880

約数和(自身を除く): 11415640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 1987, 2260, 3974, 4520, 7948, 9935, 15896, 19870, 39740, 79480, 224531, 449062, 898124, 1122655, 1796248, 2245310, 4490620, 8981240]

約数ペア:

[(1, 8981240), (2, 4490620), (4, 2245310), (5, 1796248), (8, 1122655), (10, 898124), (20, 449062), (40, 224531), (113, 79480), (226, 39740), (452, 19870), (565, 15896), (904, 9935), (1130, 7948), (1987, 4520), (2260, 3974)]