80171980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{572657}}^1$

素因数の和:572673

約数の個数: 24

約数和(自身を含む): 192413088

約数和(自身を除く): 112241108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 572657, 1145314, 2290628, 2863285, 4008599, 5726570, 8017198, 11453140, 16034396, 20042995, 40085990, 80171980]

約数ペア:

[(1, 80171980), (2, 40085990), (4, 20042995), (5, 16034396), (7, 11453140), (10, 8017198), (14, 5726570), (20, 4008599), (28, 2863285), (35, 2290628), (70, 1145314), (140, 572657)]