20576440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13903}}^1$

素因数の和:13951

約数の個数: 32

約数和(自身を含む): 47551680

約数和(自身を除く): 26975240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13903, 27806, 55612, 69515, 111224, 139030, 278060, 514411, 556120, 1028822, 2057644, 2572055, 4115288, 5144110, 10288220, 20576440]

約数ペア:

[(1, 20576440), (2, 10288220), (4, 5144110), (5, 4115288), (8, 2572055), (10, 2057644), (20, 1028822), (37, 556120), (40, 514411), (74, 278060), (148, 139030), (185, 111224), (296, 69515), (370, 55612), (740, 27806), (1480, 13903)]