1388403730

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{2833477}}^1$

素因数の和:2833498

約数の個数: 24

約数和(自身を含む): 2907148428

約数和(自身を除く): 1518744698

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 2833477, 5666954, 14167385, 19834339, 28334770, 39668678, 99171695, 138840373, 198343390, 277680746, 694201865, 1388403730]

約数ペア:

[(1, 1388403730), (2, 694201865), (5, 277680746), (7, 198343390), (10, 138840373), (14, 99171695), (35, 39668678), (49, 28334770), (70, 19834339), (98, 14167385), (245, 5666954), (490, 2833477)]