18103240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4481}}^1$

素因数の和:4593

約数の個数: 32

約数和(自身を含む): 41144760

約数和(自身を除く): 23041520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4481, 8962, 17924, 22405, 35848, 44810, 89620, 179240, 452581, 905162, 1810324, 2262905, 3620648, 4525810, 9051620, 18103240]

約数ペア:

[(1, 18103240), (2, 9051620), (4, 4525810), (5, 3620648), (8, 2262905), (10, 1810324), (20, 905162), (40, 452581), (101, 179240), (202, 89620), (404, 44810), (505, 35848), (808, 22405), (1010, 17924), (2020, 8962), (4040, 4481)]