518180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1993}}^1$

素因数の和:2015

約数の個数: 24

約数和(自身を含む): 1172472

約数和(自身を除く): 654292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1993, 3986, 7972, 9965, 19930, 25909, 39860, 51818, 103636, 129545, 259090, 518180]

約数ペア:

[(1, 518180), (2, 259090), (4, 129545), (5, 103636), (10, 51818), (13, 39860), (20, 25909), (26, 19930), (52, 9965), (65, 7972), (130, 3986), (260, 1993)]