320810620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1233887}}^1$

素因数の和:1233909

約数の個数: 24

約数和(自身を含む): 725526144

約数和(自身を除く): 404715524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1233887, 2467774, 4935548, 6169435, 12338870, 16040531, 24677740, 32081062, 64162124, 80202655, 160405310, 320810620]

約数ペア:

[(1, 320810620), (2, 160405310), (4, 80202655), (5, 64162124), (10, 32081062), (13, 24677740), (20, 16040531), (26, 12338870), (52, 6169435), (65, 4935548), (130, 2467774), (260, 1233887)]