656479540

素因数分解:

$2^2\times 5^1\times {\mathrm{6553}}^1\times {\mathrm{5009}}^1$

素因数の和:11571

約数の個数: 24

約数和(自身を含む): 1379092680

約数和(自身を除く): 722613140

約数列:

[1, 2, 4, 5, 10, 20, 5009, 6553, 10018, 13106, 20036, 25045, 26212, 32765, 50090, 65530, 100180, 131060, 32823977, 65647954, 131295908, 164119885, 328239770, 656479540]

約数ペア:

[(1, 656479540), (2, 328239770), (4, 164119885), (5, 131295908), (10, 65647954), (20, 32823977), (5009, 131060), (6553, 100180), (10018, 65530), (13106, 50090), (20036, 32765), (25045, 26212)]