1394920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{811}}^1$

素因数の和:865

約数の個数: 32

約数和(自身を含む): 3215520

約数和(自身を除く): 1820600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 811, 860, 1622, 1720, 3244, 4055, 6488, 8110, 16220, 32440, 34873, 69746, 139492, 174365, 278984, 348730, 697460, 1394920]

約数ペア:

[(1, 1394920), (2, 697460), (4, 348730), (5, 278984), (8, 174365), (10, 139492), (20, 69746), (40, 34873), (43, 32440), (86, 16220), (172, 8110), (215, 6488), (344, 4055), (430, 3244), (811, 1720), (860, 1622)]