279920360

素因数分解:

$2^3\times 5^1\times {\mathrm{6998009}}^1$

素因数の和:6998020

約数の個数: 16

約数和(自身を含む): 629820900

約数和(自身を除く): 349900540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6998009, 13996018, 27992036, 34990045, 55984072, 69980090, 139960180, 279920360]

約数ペア:

[(1, 279920360), (2, 139960180), (4, 69980090), (5, 55984072), (8, 34990045), (10, 27992036), (20, 13996018), (40, 6998009)]