20375768

素因数分解:

$2^3\times 7^2\times {\mathrm{59}}^1\times {\mathrm{881}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 24870832

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 59, 98, 118, 196, 236, 392, 413, 472, 826, 881, 1652, 1762, 2891, 3304, 3524, 5782, 6167, 7048, 11564, 12334, 23128, 24668, 43169, 49336, 51979, 86338, 103958, 172676, 207916, 345352, 363853, 415832, 727706, 1455412, 2546971, 2910824, 5093942, 10187884, 20375768]

約数ペア:

[(1, 20375768), (2, 10187884), (4, 5093942), (7, 2910824), (8, 2546971), (14, 1455412), (28, 727706), (49, 415832), (56, 363853), (59, 345352), (98, 207916), (118, 172676), (196, 103958), (236, 86338), (392, 51979), (413, 49336), (472, 43169), (826, 24668), (881, 23128), (1652, 12334), (1762, 11564), (2891, 7048), (3304, 6167), (3524, 5782)]