20512456916

素因数分解:

$2^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{84859}}^1$

素因数の和:85056

約数の個数: 48

約数和(自身を含む): 41914051200

約数和(自身を除く): 21401594284

約数列:

[1, 2, 4, 7, 14, 28, 89, 97, 178, 194, 356, 388, 623, 679, 1246, 1358, 2492, 2716, 8633, 17266, 34532, 60431, 84859, 120862, 169718, 241724, 339436, 594013, 1188026, 2376052, 7552451, 8231323, 15104902, 16462646, 30209804, 32925292, 52867157, 57619261, 105734314, 115238522, 211468628, 230477044, 732587747, 1465175494, 2930350988, 5128114229, 10256228458, 20512456916]

約数ペア:

[(1, 20512456916), (2, 10256228458), (4, 5128114229), (7, 2930350988), (14, 1465175494), (28, 732587747), (89, 230477044), (97, 211468628), (178, 115238522), (194, 105734314), (356, 57619261), (388, 52867157), (623, 32925292), (679, 30209804), (1246, 16462646), (1358, 15104902), (2492, 8231323), (2716, 7552451), (8633, 2376052), (17266, 1188026), (34532, 594013), (60431, 339436), (84859, 241724), (120862, 169718)]