16040720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4663}}^1$

素因数の和:4719

約数の個数: 40

約数和(自身を含む): 38170176

約数和(自身を除く): 22129456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4663, 9326, 18652, 23315, 37304, 46630, 74608, 93260, 186520, 200509, 373040, 401018, 802036, 1002545, 1604072, 2005090, 3208144, 4010180, 8020360, 16040720]

約数ペア:

[(1, 16040720), (2, 8020360), (4, 4010180), (5, 3208144), (8, 2005090), (10, 1604072), (16, 1002545), (20, 802036), (40, 401018), (43, 373040), (80, 200509), (86, 186520), (172, 93260), (215, 74608), (344, 46630), (430, 37304), (688, 23315), (860, 18652), (1720, 9326), (3440, 4663)]