18615702020

素因数分解:

$2^2\times 5^1\times {\mathrm{4021}}^1\times {\mathrm{231481}}^1$

素因数の和:235511

約数の個数: 24

約数和(自身を含む): 39102865368

約数和(自身を除く): 20487163348

約数列:

[1, 2, 4, 5, 10, 20, 4021, 8042, 16084, 20105, 40210, 80420, 231481, 462962, 925924, 1157405, 2314810, 4629620, 930785101, 1861570202, 3723140404, 4653925505, 9307851010, 18615702020]

約数ペア:

[(1, 18615702020), (2, 9307851010), (4, 4653925505), (5, 3723140404), (10, 1861570202), (20, 930785101), (4021, 4629620), (8042, 2314810), (16084, 1157405), (20105, 925924), (40210, 462962), (80420, 231481)]