71744140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{275939}}^1$

素因数の和:275961

約数の個数: 24

約数和(自身を含む): 162252720

約数和(自身を除く): 90508580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 275939, 551878, 1103756, 1379695, 2759390, 3587207, 5518780, 7174414, 14348828, 17936035, 35872070, 71744140]

約数ペア:

[(1, 71744140), (2, 35872070), (4, 17936035), (5, 14348828), (10, 7174414), (13, 5518780), (20, 3587207), (26, 2759390), (52, 1379695), (65, 1103756), (130, 551878), (260, 275939)]