7439540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{21881}}^1$

素因数の和:21907

約数の個数: 24

約数和(自身を含む): 16542792

約数和(自身を除く): 9103252

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 21881, 43762, 87524, 109405, 218810, 371977, 437620, 743954, 1487908, 1859885, 3719770, 7439540]

約数ペア:

[(1, 7439540), (2, 3719770), (4, 1859885), (5, 1487908), (10, 743954), (17, 437620), (20, 371977), (34, 218810), (68, 109405), (85, 87524), (170, 43762), (340, 21881)]