16221320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{9431}}^1$

素因数の和:9485

約数の個数: 32

約数和(自身を含む): 37350720

約数和(自身を除く): 21129400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 9431, 18862, 37724, 47155, 75448, 94310, 188620, 377240, 405533, 811066, 1622132, 2027665, 3244264, 4055330, 8110660, 16221320]

約数ペア:

[(1, 16221320), (2, 8110660), (4, 4055330), (5, 3244264), (8, 2027665), (10, 1622132), (20, 811066), (40, 405533), (43, 377240), (86, 188620), (172, 94310), (215, 75448), (344, 47155), (430, 37724), (860, 18862), (1720, 9431)]