20368698980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{355723}}^1$

素因数の和:356148

約数の個数: 48

約数和(自身を含む): 49004538240

約数和(自身を除く): 28635839260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 409, 818, 1636, 2045, 2863, 4090, 5726, 8180, 11452, 14315, 28630, 57260, 355723, 711446, 1422892, 1778615, 2490061, 3557230, 4980122, 7114460, 9960244, 12450305, 24900610, 49801220, 145490707, 290981414, 581962828, 727453535, 1018434949, 1454907070, 2036869898, 2909814140, 4073739796, 5092174745, 10184349490, 20368698980]

約数ペア:

[(1, 20368698980), (2, 10184349490), (4, 5092174745), (5, 4073739796), (7, 2909814140), (10, 2036869898), (14, 1454907070), (20, 1018434949), (28, 727453535), (35, 581962828), (70, 290981414), (140, 145490707), (409, 49801220), (818, 24900610), (1636, 12450305), (2045, 9960244), (2863, 7114460), (4090, 4980122), (5726, 3557230), (8180, 2490061), (11452, 1778615), (14315, 1422892), (28630, 711446), (57260, 355723)]