15640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:51

約数の個数: 32

約数和(自身を含む): 38880

約数和(自身を除く): 23240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 23, 34, 40, 46, 68, 85, 92, 115, 136, 170, 184, 230, 340, 391, 460, 680, 782, 920, 1564, 1955, 3128, 3910, 7820, 15640]

約数ペア:

[(1, 15640), (2, 7820), (4, 3910), (5, 3128), (8, 1955), (10, 1564), (17, 920), (20, 782), (23, 680), (34, 460), (40, 391), (46, 340), (68, 230), (85, 184), (92, 170), (115, 136)]