408021740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2914441}}^1$

素因数の和:2914457

約数の個数: 24

約数和(自身を含む): 979252512

約数和(自身を除く): 571230772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2914441, 5828882, 11657764, 14572205, 20401087, 29144410, 40802174, 58288820, 81604348, 102005435, 204010870, 408021740]

約数ペア:

[(1, 408021740), (2, 204010870), (4, 102005435), (5, 81604348), (7, 58288820), (10, 40802174), (14, 29144410), (20, 20401087), (28, 14572205), (35, 11657764), (70, 5828882), (140, 2914441)]