20199651880

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1\times {\mathrm{907}}^1$

素因数の和:1283

約数の個数: 128

約数和(自身を含む): 47894457600

約数和(自身を除く): 27694805720

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 73, 116, 145, 146, 232, 263, 290, 292, 365, 526, 580, 584, 730, 907, 1052, 1160, 1315, 1460, 1814, 2104, 2117, 2630, 2920, 3628, 4234, 4535, 5260, 7256, 7627, 8468, 9070, 10520, 10585, 15254, 16936, 18140, 19199, 21170, 26303, 30508, 36280, 38135, 38398, 42340, 52606, 61016, 66211, 76270, 76796, 84680, 95995, 105212, 131515, 132422, 152540, 153592, 191990, 210424, 238541, 263030, 264844, 305080, 331055, 383980, 477082, 526060, 529688, 556771, 662110, 767960, 954164, 1052120, 1113542, 1192705, 1324220, 1908328, 1920119, 2227084, 2385410, 2648440, 2783855, 3840238, 4454168, 4770820, 5567710, 6917689, 7680476, 9541640, 9600595, 11135420, 13835378, 15360952, 17413493, 19201190, 22270840, 27670756, 34588445, 34826986, 38402380, 55341512, 69176890, 69653972, 76804760, 87067465, 138353780, 139307944, 174134930, 276707560, 348269860, 504991297, 696539720, 1009982594, 2019965188, 2524956485, 4039930376, 5049912970, 10099825940, 20199651880]

約数ペア:

[(1, 20199651880), (2, 10099825940), (4, 5049912970), (5, 4039930376), (8, 2524956485), (10, 2019965188), (20, 1009982594), (29, 696539720), (40, 504991297), (58, 348269860), (73, 276707560), (116, 174134930), (145, 139307944), (146, 138353780), (232, 87067465), (263, 76804760), (290, 69653972), (292, 69176890), (365, 55341512), (526, 38402380), (580, 34826986), (584, 34588445), (730, 27670756), (907, 22270840), (1052, 19201190), (1160, 17413493), (1315, 15360952), (1460, 13835378), (1814, 11135420), (2104, 9600595), (2117, 9541640), (2630, 7680476), (2920, 6917689), (3628, 5567710), (4234, 4770820), (4535, 4454168), (5260, 3840238), (7256, 2783855), (7627, 2648440), (8468, 2385410), (9070, 2227084), (10520, 1920119), (10585, 1908328), (15254, 1324220), (16936, 1192705), (18140, 1113542), (19199, 1052120), (21170, 954164), (26303, 767960), (30508, 662110), (36280, 556771), (38135, 529688), (38398, 526060), (42340, 477082), (52606, 383980), (61016, 331055), (66211, 305080), (76270, 264844), (76796, 263030), (84680, 238541), (95995, 210424), (105212, 191990), (131515, 153592), (132422, 152540)]