68541520

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3049}}^1$

素因数の和:3343

約数の個数: 40

約数和(自身を含む): 159978600

約数和(自身を除く): 91437080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 3049, 4496, 5620, 6098, 11240, 12196, 15245, 22480, 24392, 30490, 48784, 60980, 121960, 243920, 856769, 1713538, 3427076, 4283845, 6854152, 8567690, 13708304, 17135380, 34270760, 68541520]

約数ペア:

[(1, 68541520), (2, 34270760), (4, 17135380), (5, 13708304), (8, 8567690), (10, 6854152), (16, 4283845), (20, 3427076), (40, 1713538), (80, 856769), (281, 243920), (562, 121960), (1124, 60980), (1405, 48784), (2248, 30490), (2810, 24392), (3049, 22480), (4496, 15245), (5620, 12196), (6098, 11240)]