9851440

素因数分解:

$2^4\times 5^1\times {\mathrm{123143}}^1$

素因数の和:123156

約数の個数: 20

約数和(自身を含む): 22904784

約数和(自身を除く): 13053344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123143, 246286, 492572, 615715, 985144, 1231430, 1970288, 2462860, 4925720, 9851440]

約数ペア:

[(1, 9851440), (2, 4925720), (4, 2462860), (5, 1970288), (8, 1231430), (10, 985144), (16, 615715), (20, 492572), (40, 246286), (80, 123143)]