20699560

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 55404000

約数和(自身を除く): 34704440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 59, 70, 98, 118, 140, 179, 196, 236, 245, 280, 295, 358, 392, 413, 472, 490, 590, 716, 826, 895, 980, 1180, 1253, 1432, 1652, 1790, 1960, 2065, 2360, 2506, 2891, 3304, 3580, 4130, 5012, 5782, 6265, 7160, 8260, 8771, 10024, 10561, 11564, 12530, 14455, 16520, 17542, 21122, 23128, 25060, 28910, 35084, 42244, 43855, 50120, 52805, 57820, 70168, 73927, 84488, 87710, 105610, 115640, 147854, 175420, 211220, 295708, 350840, 369635, 422440, 517489, 591416, 739270, 1034978, 1478540, 2069956, 2587445, 2957080, 4139912, 5174890, 10349780, 20699560]

約数ペア:

[(1, 20699560), (2, 10349780), (4, 5174890), (5, 4139912), (7, 2957080), (8, 2587445), (10, 2069956), (14, 1478540), (20, 1034978), (28, 739270), (35, 591416), (40, 517489), (49, 422440), (56, 369635), (59, 350840), (70, 295708), (98, 211220), (118, 175420), (140, 147854), (179, 115640), (196, 105610), (236, 87710), (245, 84488), (280, 73927), (295, 70168), (358, 57820), (392, 52805), (413, 50120), (472, 43855), (490, 42244), (590, 35084), (716, 28910), (826, 25060), (895, 23128), (980, 21122), (1180, 17542), (1253, 16520), (1432, 14455), (1652, 12530), (1790, 11564), (1960, 10561), (2065, 10024), (2360, 8771), (2506, 8260), (2891, 7160), (3304, 6265), (3580, 5782), (4130, 5012)]