20712432

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1747}}^1$

素因数の和:1790

約数の個数: 80

約数和(自身を含む): 60690560

約数和(自身を除く): 39978128

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 152, 156, 208, 228, 247, 304, 312, 456, 494, 624, 741, 912, 988, 1482, 1747, 1976, 2964, 3494, 3952, 5241, 5928, 6988, 10482, 11856, 13976, 20964, 22711, 27952, 33193, 41928, 45422, 66386, 68133, 83856, 90844, 99579, 132772, 136266, 181688, 199158, 265544, 272532, 363376, 398316, 431509, 531088, 545064, 796632, 863018, 1090128, 1294527, 1593264, 1726036, 2589054, 3452072, 5178108, 6904144, 10356216, 20712432]

約数ペア:

[(1, 20712432), (2, 10356216), (3, 6904144), (4, 5178108), (6, 3452072), (8, 2589054), (12, 1726036), (13, 1593264), (16, 1294527), (19, 1090128), (24, 863018), (26, 796632), (38, 545064), (39, 531088), (48, 431509), (52, 398316), (57, 363376), (76, 272532), (78, 265544), (104, 199158), (114, 181688), (152, 136266), (156, 132772), (208, 99579), (228, 90844), (247, 83856), (304, 68133), (312, 66386), (456, 45422), (494, 41928), (624, 33193), (741, 27952), (912, 22711), (988, 20964), (1482, 13976), (1747, 11856), (1976, 10482), (2964, 6988), (3494, 5928), (3952, 5241)]