20248240

素因数分解:

$2^4\times 5^1\times {\mathrm{253103}}^1$

素因数の和:253116

約数の個数: 20

約数和(自身を含む): 47077344

約数和(自身を除く): 26829104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253103, 506206, 1012412, 1265515, 2024824, 2531030, 4049648, 5062060, 10124120, 20248240]

約数ペア:

[(1, 20248240), (2, 10124120), (4, 5062060), (5, 4049648), (8, 2531030), (10, 2024824), (16, 1265515), (20, 1012412), (40, 506206), (80, 253103)]