2681240

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3943}}^1$

素因数の和:3971

約数の個数: 32

約数和(自身を含む): 6389280

約数和(自身を除く): 3708040

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3943, 7886, 15772, 19715, 31544, 39430, 67031, 78860, 134062, 157720, 268124, 335155, 536248, 670310, 1340620, 2681240]

約数ペア:

[(1, 2681240), (2, 1340620), (4, 670310), (5, 536248), (8, 335155), (10, 268124), (17, 157720), (20, 134062), (34, 78860), (40, 67031), (68, 39430), (85, 31544), (136, 19715), (170, 15772), (340, 7886), (680, 3943)]