128021260

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{15277}}^1$

素因数の和:15705

約数の個数: 24

約数和(自身を含む): 269503920

約数和(自身を除く): 141482660

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 8380, 15277, 30554, 61108, 76385, 152770, 305540, 6401063, 12802126, 25604252, 32005315, 64010630, 128021260]

約数ペア:

[(1, 128021260), (2, 64010630), (4, 32005315), (5, 25604252), (10, 12802126), (20, 6401063), (419, 305540), (838, 152770), (1676, 76385), (2095, 61108), (4190, 30554), (8380, 15277)]