20778888585

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{613}}^1\times {\mathrm{1307}}^1$

素因数の和:1967

約数の個数: 128

約数和(自身を含む): 43175301120

約数和(自身を除く): 22396412535

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 35, 39, 57, 65, 91, 95, 105, 133, 195, 247, 273, 285, 399, 455, 613, 665, 741, 1235, 1307, 1365, 1729, 1839, 1995, 3065, 3705, 3921, 4291, 5187, 6535, 7969, 8645, 9149, 9195, 11647, 12873, 16991, 19605, 21455, 23907, 24833, 25935, 27447, 34941, 39845, 45745, 50973, 55783, 58235, 64365, 74499, 81529, 84955, 118937, 119535, 124165, 137235, 151411, 167349, 173831, 174705, 244587, 254865, 278915, 322829, 356811, 372495, 407645, 454233, 521493, 594685, 757055, 801191, 836745, 869155, 968487, 1059877, 1222935, 1614145, 1784055, 2259803, 2271165, 2403573, 2607465, 3179631, 4005955, 4842435, 5299385, 5608337, 6779409, 10415483, 11299015, 12017865, 15222629, 15898155, 16825011, 28041685, 31246449, 33897045, 45667887, 52077415, 72908381, 76113145, 84125055, 106558403, 156232245, 197894177, 218725143, 228339435, 319675209, 364541905, 532792015, 593682531, 989470885, 1093625715, 1385259239, 1598376045, 2968412655, 4155777717, 6926296195, 20778888585]

約数ペア:

[(1, 20778888585), (3, 6926296195), (5, 4155777717), (7, 2968412655), (13, 1598376045), (15, 1385259239), (19, 1093625715), (21, 989470885), (35, 593682531), (39, 532792015), (57, 364541905), (65, 319675209), (91, 228339435), (95, 218725143), (105, 197894177), (133, 156232245), (195, 106558403), (247, 84125055), (273, 76113145), (285, 72908381), (399, 52077415), (455, 45667887), (613, 33897045), (665, 31246449), (741, 28041685), (1235, 16825011), (1307, 15898155), (1365, 15222629), (1729, 12017865), (1839, 11299015), (1995, 10415483), (3065, 6779409), (3705, 5608337), (3921, 5299385), (4291, 4842435), (5187, 4005955), (6535, 3179631), (7969, 2607465), (8645, 2403573), (9149, 2271165), (9195, 2259803), (11647, 1784055), (12873, 1614145), (16991, 1222935), (19605, 1059877), (21455, 968487), (23907, 869155), (24833, 836745), (25935, 801191), (27447, 757055), (34941, 594685), (39845, 521493), (45745, 454233), (50973, 407645), (55783, 372495), (58235, 356811), (64365, 322829), (74499, 278915), (81529, 254865), (84955, 244587), (118937, 174705), (119535, 173831), (124165, 167349), (137235, 151411)]