68678120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{245279}}^1$

素因数の和:245297

約数の個数: 32

約数和(自身を含む): 176601600

約数和(自身を除く): 107923480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 245279, 490558, 981116, 1226395, 1716953, 1962232, 2452790, 3433906, 4905580, 6867812, 8584765, 9811160, 13735624, 17169530, 34339060, 68678120]

約数ペア:

[(1, 68678120), (2, 34339060), (4, 17169530), (5, 13735624), (7, 9811160), (8, 8584765), (10, 6867812), (14, 4905580), (20, 3433906), (28, 2452790), (35, 1962232), (40, 1716953), (56, 1226395), (70, 981116), (140, 490558), (280, 245279)]