20984470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1069}}^1$

素因数の和:1240

約数の個数: 32

約数和(自身を含む): 40985280

約数和(自身を除く): 20000810

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151, 302, 755, 1069, 1510, 1963, 2138, 3926, 5345, 9815, 10690, 13897, 19630, 27794, 69485, 138970, 161419, 322838, 807095, 1614190, 2098447, 4196894, 10492235, 20984470]

約数ペア:

[(1, 20984470), (2, 10492235), (5, 4196894), (10, 2098447), (13, 1614190), (26, 807095), (65, 322838), (130, 161419), (151, 138970), (302, 69485), (755, 27794), (1069, 19630), (1510, 13897), (1963, 10690), (2138, 9815), (3926, 5345)]