718157020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{57637}}^1$

素因数の和:57742

約数の個数: 48

約数和(自身を含む): 1742973120

約数和(自身を除く): 1024816100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 57637, 115274, 230548, 288185, 403459, 576370, 806918, 1152740, 1613836, 2017295, 4034590, 5129693, 8069180, 10259386, 20518772, 25648465, 35907851, 51296930, 71815702, 102593860, 143631404, 179539255, 359078510, 718157020]

約数ペア:

[(1, 718157020), (2, 359078510), (4, 179539255), (5, 143631404), (7, 102593860), (10, 71815702), (14, 51296930), (20, 35907851), (28, 25648465), (35, 20518772), (70, 10259386), (89, 8069180), (140, 5129693), (178, 4034590), (356, 2017295), (445, 1613836), (623, 1152740), (890, 806918), (1246, 576370), (1780, 403459), (2492, 288185), (3115, 230548), (6230, 115274), (12460, 57637)]