68027720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{39551}}^1$

素因数の和:39605

約数の個数: 32

約数和(自身を含む): 156625920

約数和(自身を除く): 88598200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 39551, 79102, 158204, 197755, 316408, 395510, 791020, 1582040, 1700693, 3401386, 6802772, 8503465, 13605544, 17006930, 34013860, 68027720]

約数ペア:

[(1, 68027720), (2, 34013860), (4, 17006930), (5, 13605544), (8, 8503465), (10, 6802772), (20, 3401386), (40, 1700693), (43, 1582040), (86, 791020), (172, 395510), (215, 316408), (344, 197755), (430, 158204), (860, 79102), (1720, 39551)]