68640640

素因数分解:

$2^7\times 5^1\times {\mathrm{107251}}^1$

素因数の和:107270

約数の個数: 32

約数和(自身を含む): 164095560

約数和(自身を除く): 95454920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 107251, 214502, 429004, 536255, 858008, 1072510, 1716016, 2145020, 3432032, 4290040, 6864064, 8580080, 13728128, 17160160, 34320320, 68640640]

約数ペア:

[(1, 68640640), (2, 34320320), (4, 17160160), (5, 13728128), (8, 8580080), (10, 6864064), (16, 4290040), (20, 3432032), (32, 2145020), (40, 1716016), (64, 1072510), (80, 858008), (128, 536255), (160, 429004), (320, 214502), (640, 107251)]