2639080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3881}}^1$

素因数の和:3909

約数の個数: 32

約数和(自身を含む): 6288840

約数和(自身を除く): 3649760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3881, 7762, 15524, 19405, 31048, 38810, 65977, 77620, 131954, 155240, 263908, 329885, 527816, 659770, 1319540, 2639080]

約数ペア:

[(1, 2639080), (2, 1319540), (4, 659770), (5, 527816), (8, 329885), (10, 263908), (17, 155240), (20, 131954), (34, 77620), (40, 65977), (68, 38810), (85, 31048), (136, 19405), (170, 15524), (340, 7762), (680, 3881)]