20781105864

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{1117}}^1\times {\mathrm{45599}}^1$

素因数の和:46742

約数の個数: 64

約数和(自身を含む): 55059264000

約数和(自身を除く): 34278158136

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 1117, 2234, 3351, 4468, 6702, 8936, 13404, 18989, 26808, 37978, 45599, 56967, 75956, 91198, 113934, 136797, 151912, 182396, 227868, 273594, 364792, 455736, 547188, 775183, 1094376, 1550366, 2325549, 3100732, 4651098, 6201464, 9302196, 18604392, 50934083, 101868166, 152802249, 203736332, 305604498, 407472664, 611208996, 865879411, 1222417992, 1731758822, 2597638233, 3463517644, 5195276466, 6927035288, 10390552932, 20781105864]

約数ペア:

[(1, 20781105864), (2, 10390552932), (3, 6927035288), (4, 5195276466), (6, 3463517644), (8, 2597638233), (12, 1731758822), (17, 1222417992), (24, 865879411), (34, 611208996), (51, 407472664), (68, 305604498), (102, 203736332), (136, 152802249), (204, 101868166), (408, 50934083), (1117, 18604392), (2234, 9302196), (3351, 6201464), (4468, 4651098), (6702, 3100732), (8936, 2325549), (13404, 1550366), (18989, 1094376), (26808, 775183), (37978, 547188), (45599, 455736), (56967, 364792), (75956, 273594), (91198, 227868), (113934, 182396), (136797, 151912)]