156915620

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{77681}}^1$

素因数の和:77791

約数の個数: 24

約数和(自身を含む): 332789688

約数和(自身を除く): 175874068

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 77681, 155362, 310724, 388405, 776810, 1553620, 7845781, 15691562, 31383124, 39228905, 78457810, 156915620]

約数ペア:

[(1, 156915620), (2, 78457810), (4, 39228905), (5, 31383124), (10, 15691562), (20, 7845781), (101, 1553620), (202, 776810), (404, 388405), (505, 310724), (1010, 155362), (2020, 77681)]