20135097040

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{55207}}^1$

素因数の和:55364

約数の個数: 80

約数和(自身を含む): 48303908352

約数和(自身を除く): 28168811312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 97, 188, 194, 235, 376, 388, 470, 485, 752, 776, 940, 970, 1552, 1880, 1940, 3760, 3880, 4559, 7760, 9118, 18236, 22795, 36472, 45590, 55207, 72944, 91180, 110414, 182360, 220828, 276035, 364720, 441656, 552070, 883312, 1104140, 2208280, 2594729, 4416560, 5189458, 5355079, 10378916, 10710158, 12973645, 20757832, 21420316, 25947290, 26775395, 41515664, 42840632, 51894580, 53550790, 85681264, 103789160, 107101580, 207578320, 214203160, 251688713, 428406320, 503377426, 1006754852, 1258443565, 2013509704, 2516887130, 4027019408, 5033774260, 10067548520, 20135097040]

約数ペア:

[(1, 20135097040), (2, 10067548520), (4, 5033774260), (5, 4027019408), (8, 2516887130), (10, 2013509704), (16, 1258443565), (20, 1006754852), (40, 503377426), (47, 428406320), (80, 251688713), (94, 214203160), (97, 207578320), (188, 107101580), (194, 103789160), (235, 85681264), (376, 53550790), (388, 51894580), (470, 42840632), (485, 41515664), (752, 26775395), (776, 25947290), (940, 21420316), (970, 20757832), (1552, 12973645), (1880, 10710158), (1940, 10378916), (3760, 5355079), (3880, 5189458), (4559, 4416560), (7760, 2594729), (9118, 2208280), (18236, 1104140), (22795, 883312), (36472, 552070), (45590, 441656), (55207, 364720), (72944, 276035), (91180, 220828), (110414, 182360)]