1396990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{2851}}^1$

素因数の和:2872

約数の個数: 24

約数和(自身を含む): 2926152

約数和(自身を除く): 1529162

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 2851, 5702, 14255, 19957, 28510, 39914, 99785, 139699, 199570, 279398, 698495, 1396990]

約数ペア:

[(1, 1396990), (2, 698495), (5, 279398), (7, 199570), (10, 139699), (14, 99785), (35, 39914), (49, 28510), (70, 19957), (98, 14255), (245, 5702), (490, 2851)]