40249978

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{1117}}^1$

素因数の和:1581

約数の個数: 16

約数和(自身を含む): 61981920

約数和(自身を除く): 21731942

約数列:

[1, 2, 43, 86, 419, 838, 1117, 2234, 18017, 36034, 48031, 96062, 468023, 936046, 20124989, 40249978]

約数ペア:

[(1, 40249978), (2, 20124989), (43, 936046), (86, 468023), (419, 96062), (838, 48031), (1117, 36034), (2234, 18017)]