21023040

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:440

約数の個数: 112

約数和(自身を含む): 68031360

約数和(自身を除く): 47008320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 160, 183, 192, 240, 244, 305, 320, 359, 366, 480, 488, 610, 718, 732, 915, 960, 976, 1077, 1220, 1436, 1464, 1795, 1830, 1952, 2154, 2440, 2872, 2928, 3590, 3660, 3904, 4308, 4880, 5385, 5744, 5856, 7180, 7320, 8616, 9760, 10770, 11488, 11712, 14360, 14640, 17232, 19520, 21540, 21899, 22976, 28720, 29280, 34464, 43080, 43798, 57440, 58560, 65697, 68928, 86160, 87596, 109495, 114880, 131394, 172320, 175192, 218990, 262788, 328485, 344640, 350384, 437980, 525576, 656970, 700768, 875960, 1051152, 1313940, 1401536, 1751920, 2102304, 2627880, 3503840, 4204608, 5255760, 7007680, 10511520, 21023040]

約数ペア:

[(1, 21023040), (2, 10511520), (3, 7007680), (4, 5255760), (5, 4204608), (6, 3503840), (8, 2627880), (10, 2102304), (12, 1751920), (15, 1401536), (16, 1313940), (20, 1051152), (24, 875960), (30, 700768), (32, 656970), (40, 525576), (48, 437980), (60, 350384), (61, 344640), (64, 328485), (80, 262788), (96, 218990), (120, 175192), (122, 172320), (160, 131394), (183, 114880), (192, 109495), (240, 87596), (244, 86160), (305, 68928), (320, 65697), (359, 58560), (366, 57440), (480, 43798), (488, 43080), (610, 34464), (718, 29280), (732, 28720), (915, 22976), (960, 21899), (976, 21540), (1077, 19520), (1220, 17232), (1436, 14640), (1464, 14360), (1795, 11712), (1830, 11488), (1952, 10770), (2154, 9760), (2440, 8616), (2872, 7320), (2928, 7180), (3590, 5856), (3660, 5744), (3904, 5385), (4308, 4880)]