1340620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3943}}^1$

素因数の和:3969

約数の個数: 24

約数和(自身を含む): 2981664

約数和(自身を除く): 1641044

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 3943, 7886, 15772, 19715, 39430, 67031, 78860, 134062, 268124, 335155, 670310, 1340620]

約数ペア:

[(1, 1340620), (2, 670310), (4, 335155), (5, 268124), (10, 134062), (17, 78860), (20, 67031), (34, 39430), (68, 19715), (85, 15772), (170, 7886), (340, 3943)]