1296620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4987}}^1$

素因数の和:5009

約数の個数: 24

約数和(自身を含む): 2932944

約数和(自身を除く): 1636324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4987, 9974, 19948, 24935, 49870, 64831, 99740, 129662, 259324, 324155, 648310, 1296620]

約数ペア:

[(1, 1296620), (2, 648310), (4, 324155), (5, 259324), (10, 129662), (13, 99740), (20, 64831), (26, 49870), (52, 24935), (65, 19948), (130, 9974), (260, 4987)]