80451980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{574657}}^1$

素因数の和:574673

約数の個数: 24

約数和(自身を含む): 193085088

約数和(自身を除く): 112633108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 574657, 1149314, 2298628, 2873285, 4022599, 5746570, 8045198, 11493140, 16090396, 20112995, 40225990, 80451980]

約数ペア:

[(1, 80451980), (2, 40225990), (4, 20112995), (5, 16090396), (7, 11493140), (10, 8045198), (14, 5746570), (20, 4022599), (28, 2873285), (35, 2298628), (70, 1149314), (140, 574657)]