82719980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1693}}^1$

素因数の和:2058

約数の個数: 48

約数和(自身を含む): 199214400

約数和(自身を除く): 116494420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1693, 1745, 2443, 3386, 3490, 4886, 6772, 6980, 8465, 9772, 11851, 12215, 16930, 23702, 24430, 33860, 47404, 48860, 59255, 118510, 237020, 590857, 1181714, 2363428, 2954285, 4135999, 5908570, 8271998, 11817140, 16543996, 20679995, 41359990, 82719980]

約数ペア:

[(1, 82719980), (2, 41359990), (4, 20679995), (5, 16543996), (7, 11817140), (10, 8271998), (14, 5908570), (20, 4135999), (28, 2954285), (35, 2363428), (70, 1181714), (140, 590857), (349, 237020), (698, 118510), (1396, 59255), (1693, 48860), (1745, 47404), (2443, 33860), (3386, 24430), (3490, 23702), (4886, 16930), (6772, 12215), (6980, 11851), (8465, 9772)]