28000630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{400009}}^1$

素因数の和:400023

約数の個数: 16

約数和(自身を含む): 57601440

約数和(自身を除く): 29600810

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 400009, 800018, 2000045, 2800063, 4000090, 5600126, 14000315, 28000630]

約数ペア:

[(1, 28000630), (2, 14000315), (5, 5600126), (7, 4000090), (10, 2800063), (14, 2000045), (35, 800018), (70, 400009)]