129778972

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{3449}}^1$

素因数の和:3885

約数の個数: 24

約数和(自身を含む): 237636000

約数和(自身を除く): 107857028

約数列:

[1, 2, 4, 23, 46, 92, 409, 818, 1636, 3449, 6898, 9407, 13796, 18814, 37628, 79327, 158654, 317308, 1410641, 2821282, 5642564, 32444743, 64889486, 129778972]

約数ペア:

[(1, 129778972), (2, 64889486), (4, 32444743), (23, 5642564), (46, 2821282), (92, 1410641), (409, 317308), (818, 158654), (1636, 79327), (3449, 37628), (6898, 18814), (9407, 13796)]