20519256

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{337}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 53539200

約数和(自身を除く): 33019944

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 59, 86, 118, 129, 172, 177, 236, 258, 337, 344, 354, 472, 516, 674, 708, 1011, 1032, 1348, 1416, 2022, 2537, 2696, 4044, 5074, 7611, 8088, 10148, 14491, 15222, 19883, 20296, 28982, 30444, 39766, 43473, 57964, 59649, 60888, 79532, 86946, 115928, 119298, 159064, 173892, 238596, 347784, 477192, 854969, 1709938, 2564907, 3419876, 5129814, 6839752, 10259628, 20519256]

約数ペア:

[(1, 20519256), (2, 10259628), (3, 6839752), (4, 5129814), (6, 3419876), (8, 2564907), (12, 1709938), (24, 854969), (43, 477192), (59, 347784), (86, 238596), (118, 173892), (129, 159064), (172, 119298), (177, 115928), (236, 86946), (258, 79532), (337, 60888), (344, 59649), (354, 57964), (472, 43473), (516, 39766), (674, 30444), (708, 28982), (1011, 20296), (1032, 19883), (1348, 15222), (1416, 14491), (2022, 10148), (2537, 8088), (2696, 7611), (4044, 5074)]