256254830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1399}}^1\times {\mathrm{1409}}^1$

素因数の和:2828

約数の個数: 32

約数和(自身を含む): 497448000

約数和(自身を除く): 241193170

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1399, 1409, 2798, 2818, 6995, 7045, 13990, 14090, 18187, 18317, 36374, 36634, 90935, 91585, 181870, 183170, 1971191, 3942382, 9855955, 19711910, 25625483, 51250966, 128127415, 256254830]

約数ペア:

[(1, 256254830), (2, 128127415), (5, 51250966), (10, 25625483), (13, 19711910), (26, 9855955), (65, 3942382), (130, 1971191), (1399, 183170), (1409, 181870), (2798, 91585), (2818, 90935), (6995, 36634), (7045, 36374), (13990, 18317), (14090, 18187)]