647539855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{2003}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 848413440

約数和(自身を除く): 200873585

約数列:

[1, 5, 19, 41, 83, 95, 205, 415, 779, 1577, 2003, 3403, 3895, 7885, 10015, 17015, 38057, 64657, 82123, 166249, 190285, 323285, 410615, 831245, 1560337, 3158731, 6816209, 7801685, 15793655, 34081045, 129507971, 647539855]

約数ペア:

[(1, 647539855), (5, 129507971), (19, 34081045), (41, 15793655), (83, 7801685), (95, 6816209), (205, 3158731), (415, 1560337), (779, 831245), (1577, 410615), (2003, 323285), (3403, 190285), (3895, 166249), (7885, 82123), (10015, 64657), (17015, 38057)]