199975180

素因数分解:

$2^2\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{8243}}^1$

素因数の和:9465

約数の個数: 24

約数和(自身を含む): 420345072

約数和(自身を除く): 220369892

約数列:

[1, 2, 4, 5, 10, 20, 1213, 2426, 4852, 6065, 8243, 12130, 16486, 24260, 32972, 41215, 82430, 164860, 9998759, 19997518, 39995036, 49993795, 99987590, 199975180]

約数ペア:

[(1, 199975180), (2, 99987590), (4, 49993795), (5, 39995036), (10, 19997518), (20, 9998759), (1213, 164860), (2426, 82430), (4852, 41215), (6065, 32972), (8243, 24260), (12130, 16486)]