7781964280

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{814013}}^1$

素因数の和:814263

約数の個数: 32

約数和(自身を含む): 17582702400

約数和(自身を除く): 9800738120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 814013, 1628026, 3256052, 4070065, 6512104, 8140130, 16280260, 32560520, 194549107, 389098214, 778196428, 972745535, 1556392856, 1945491070, 3890982140, 7781964280]

約数ペア:

[(1, 7781964280), (2, 3890982140), (4, 1945491070), (5, 1556392856), (8, 972745535), (10, 778196428), (20, 389098214), (40, 194549107), (239, 32560520), (478, 16280260), (956, 8140130), (1195, 6512104), (1912, 4070065), (2390, 3256052), (4780, 1628026), (9560, 814013)]