19253680

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 47630880

約数和(自身を除く): 28377200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 43, 58, 80, 86, 116, 145, 172, 193, 215, 232, 290, 344, 386, 430, 464, 580, 688, 772, 860, 965, 1160, 1247, 1544, 1720, 1930, 2320, 2494, 3088, 3440, 3860, 4988, 5597, 6235, 7720, 8299, 9976, 11194, 12470, 15440, 16598, 19952, 22388, 24940, 27985, 33196, 41495, 44776, 49880, 55970, 66392, 82990, 89552, 99760, 111940, 132784, 165980, 223880, 240671, 331960, 447760, 481342, 663920, 962684, 1203355, 1925368, 2406710, 3850736, 4813420, 9626840, 19253680]

約数ペア:

[(1, 19253680), (2, 9626840), (4, 4813420), (5, 3850736), (8, 2406710), (10, 1925368), (16, 1203355), (20, 962684), (29, 663920), (40, 481342), (43, 447760), (58, 331960), (80, 240671), (86, 223880), (116, 165980), (145, 132784), (172, 111940), (193, 99760), (215, 89552), (232, 82990), (290, 66392), (344, 55970), (386, 49880), (430, 44776), (464, 41495), (580, 33196), (688, 27985), (772, 24940), (860, 22388), (965, 19952), (1160, 16598), (1247, 15440), (1544, 12470), (1720, 11194), (1930, 9976), (2320, 8299), (2494, 7720), (3088, 6235), (3440, 5597), (3860, 4988)]