621740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4441}}^1$

素因数の和:4457

約数の個数: 24

約数和(自身を含む): 1492512

約数和(自身を除く): 870772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4441, 8882, 17764, 22205, 31087, 44410, 62174, 88820, 124348, 155435, 310870, 621740]

約数ペア:

[(1, 621740), (2, 310870), (4, 155435), (5, 124348), (7, 88820), (10, 62174), (14, 44410), (20, 31087), (28, 22205), (35, 17764), (70, 8882), (140, 4441)]