21802440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:307

約数の個数: 128

約数和(自身を含む): 72576000

約数和(自身を除く): 50773560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 83, 88, 110, 120, 132, 165, 166, 199, 220, 249, 264, 330, 332, 398, 415, 440, 498, 597, 660, 664, 796, 830, 913, 995, 996, 1194, 1245, 1320, 1592, 1660, 1826, 1990, 1992, 2189, 2388, 2490, 2739, 2985, 3320, 3652, 3980, 4378, 4565, 4776, 4980, 5478, 5970, 6567, 7304, 7960, 8756, 9130, 9960, 10945, 10956, 11940, 13134, 13695, 16517, 17512, 18260, 21890, 21912, 23880, 26268, 27390, 32835, 33034, 36520, 43780, 49551, 52536, 54780, 65670, 66068, 82585, 87560, 99102, 109560, 131340, 132136, 165170, 181687, 198204, 247755, 262680, 330340, 363374, 396408, 495510, 545061, 660680, 726748, 908435, 991020, 1090122, 1453496, 1816870, 1982040, 2180244, 2725305, 3633740, 4360488, 5450610, 7267480, 10901220, 21802440]

約数ペア:

[(1, 21802440), (2, 10901220), (3, 7267480), (4, 5450610), (5, 4360488), (6, 3633740), (8, 2725305), (10, 2180244), (11, 1982040), (12, 1816870), (15, 1453496), (20, 1090122), (22, 991020), (24, 908435), (30, 726748), (33, 660680), (40, 545061), (44, 495510), (55, 396408), (60, 363374), (66, 330340), (83, 262680), (88, 247755), (110, 198204), (120, 181687), (132, 165170), (165, 132136), (166, 131340), (199, 109560), (220, 99102), (249, 87560), (264, 82585), (330, 66068), (332, 65670), (398, 54780), (415, 52536), (440, 49551), (498, 43780), (597, 36520), (660, 33034), (664, 32835), (796, 27390), (830, 26268), (913, 23880), (995, 21912), (996, 21890), (1194, 18260), (1245, 17512), (1320, 16517), (1592, 13695), (1660, 13134), (1826, 11940), (1990, 10956), (1992, 10945), (2189, 9960), (2388, 9130), (2490, 8756), (2739, 7960), (2985, 7304), (3320, 6567), (3652, 5970), (3980, 5478), (4378, 4980), (4565, 4776)]