705740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^2$

素因数の和:158

約数の個数: 36

約数和(自身を含む): 1717968

約数和(自身を除く): 1012228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 5041, 9940, 10082, 20164, 25205, 35287, 50410, 70574, 100820, 141148, 176435, 352870, 705740]

約数ペア:

[(1, 705740), (2, 352870), (4, 176435), (5, 141148), (7, 100820), (10, 70574), (14, 50410), (20, 35287), (28, 25205), (35, 20164), (70, 10082), (71, 9940), (140, 5041), (142, 4970), (284, 2485), (355, 1988), (497, 1420), (710, 994)]