68935660

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 147682080

約数和(自身を除く): 78746420

約数列:

[1, 2, 4, 5, 10, 20, 137, 139, 181, 274, 278, 362, 548, 556, 685, 695, 724, 905, 1370, 1390, 1810, 2740, 2780, 3620, 19043, 24797, 25159, 38086, 49594, 50318, 76172, 95215, 99188, 100636, 123985, 125795, 190430, 247970, 251590, 380860, 495940, 503180, 3446783, 6893566, 13787132, 17233915, 34467830, 68935660]

約数ペア:

[(1, 68935660), (2, 34467830), (4, 17233915), (5, 13787132), (10, 6893566), (20, 3446783), (137, 503180), (139, 495940), (181, 380860), (274, 251590), (278, 247970), (362, 190430), (548, 125795), (556, 123985), (685, 100636), (695, 99188), (724, 95215), (905, 76172), (1370, 50318), (1390, 49594), (1810, 38086), (2740, 25159), (2780, 24797), (3620, 19043)]