68310520

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 158630400

約数和(自身を除く): 90319880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 71, 134, 142, 268, 284, 335, 355, 359, 536, 568, 670, 710, 718, 1340, 1420, 1436, 1795, 2680, 2840, 2872, 3590, 4757, 7180, 9514, 14360, 19028, 23785, 24053, 25489, 38056, 47570, 48106, 50978, 95140, 96212, 101956, 120265, 127445, 190280, 192424, 203912, 240530, 254890, 481060, 509780, 962120, 1019560, 1707763, 3415526, 6831052, 8538815, 13662104, 17077630, 34155260, 68310520]

約数ペア:

[(1, 68310520), (2, 34155260), (4, 17077630), (5, 13662104), (8, 8538815), (10, 6831052), (20, 3415526), (40, 1707763), (67, 1019560), (71, 962120), (134, 509780), (142, 481060), (268, 254890), (284, 240530), (335, 203912), (355, 192424), (359, 190280), (536, 127445), (568, 120265), (670, 101956), (710, 96212), (718, 95140), (1340, 50978), (1420, 48106), (1436, 47570), (1795, 38056), (2680, 25489), (2840, 24053), (2872, 23785), (3590, 19028), (4757, 14360), (7180, 9514)]