20512781292

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{7561}}^1$

素因数の和:7823

約数の個数: 96

約数和(自身を含む): 51392561920

約数和(自身を除く): 30879780628

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 73, 76, 114, 146, 163, 219, 228, 292, 326, 438, 489, 652, 876, 978, 1387, 1956, 2774, 3097, 4161, 5548, 6194, 7561, 8322, 9291, 11899, 12388, 15122, 16644, 18582, 22683, 23798, 30244, 35697, 37164, 45366, 47596, 71394, 90732, 142788, 143659, 226081, 287318, 430977, 452162, 551953, 574636, 678243, 861954, 904324, 1103906, 1232443, 1356486, 1655859, 1723908, 2207812, 2464886, 2712972, 3311718, 3697329, 4929772, 6623436, 7394658, 10487107, 14789316, 20974214, 23416417, 31461321, 41948428, 46832834, 62922642, 70249251, 89968339, 93665668, 125845284, 140498502, 179936678, 269905017, 280997004, 359873356, 539810034, 1079620068, 1709398441, 3418796882, 5128195323, 6837593764, 10256390646, 20512781292]

約数ペア:

[(1, 20512781292), (2, 10256390646), (3, 6837593764), (4, 5128195323), (6, 3418796882), (12, 1709398441), (19, 1079620068), (38, 539810034), (57, 359873356), (73, 280997004), (76, 269905017), (114, 179936678), (146, 140498502), (163, 125845284), (219, 93665668), (228, 89968339), (292, 70249251), (326, 62922642), (438, 46832834), (489, 41948428), (652, 31461321), (876, 23416417), (978, 20974214), (1387, 14789316), (1956, 10487107), (2774, 7394658), (3097, 6623436), (4161, 4929772), (5548, 3697329), (6194, 3311718), (7561, 2712972), (8322, 2464886), (9291, 2207812), (11899, 1723908), (12388, 1655859), (15122, 1356486), (16644, 1232443), (18582, 1103906), (22683, 904324), (23798, 861954), (30244, 678243), (35697, 574636), (37164, 551953), (45366, 452162), (47596, 430977), (71394, 287318), (90732, 226081), (142788, 143659)]