20388744

素因数分解:

$2^3\times 3^2\times {\mathrm{199}}^1\times {\mathrm{1423}}^1$

素因数の和:1634

約数の個数: 48

約数和(自身を含む): 55536000

約数和(自身を除く): 35147256

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 199, 398, 597, 796, 1194, 1423, 1592, 1791, 2388, 2846, 3582, 4269, 4776, 5692, 7164, 8538, 11384, 12807, 14328, 17076, 25614, 34152, 51228, 102456, 283177, 566354, 849531, 1132708, 1699062, 2265416, 2548593, 3398124, 5097186, 6796248, 10194372, 20388744]

約数ペア:

[(1, 20388744), (2, 10194372), (3, 6796248), (4, 5097186), (6, 3398124), (8, 2548593), (9, 2265416), (12, 1699062), (18, 1132708), (24, 849531), (36, 566354), (72, 283177), (199, 102456), (398, 51228), (597, 34152), (796, 25614), (1194, 17076), (1423, 14328), (1592, 12807), (1791, 11384), (2388, 8538), (2846, 7164), (3582, 5692), (4269, 4776)]