12980630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3221}}^1$

素因数の和:3272

約数の個数: 32

約数和(自身を含む): 25982208

約数和(自身を除く): 13001578

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 3221, 4030, 6442, 16105, 32210, 41873, 83746, 99851, 199702, 209365, 418730, 499255, 998510, 1298063, 2596126, 6490315, 12980630]

約数ペア:

[(1, 12980630), (2, 6490315), (5, 2596126), (10, 1298063), (13, 998510), (26, 499255), (31, 418730), (62, 209365), (65, 199702), (130, 99851), (155, 83746), (310, 41873), (403, 32210), (806, 16105), (2015, 6442), (3221, 4030)]