18259520

素因数分解:

$2^6\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1327}}^1$

素因数の和:1387

約数の個数: 56

約数和(自身を含む): 44525184

約数和(自身を除く): 26265664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 160, 172, 215, 320, 344, 430, 688, 860, 1327, 1376, 1720, 2654, 2752, 3440, 5308, 6635, 6880, 10616, 13270, 13760, 21232, 26540, 42464, 53080, 57061, 84928, 106160, 114122, 212320, 228244, 285305, 424640, 456488, 570610, 912976, 1141220, 1825952, 2282440, 3651904, 4564880, 9129760, 18259520]

約数ペア:

[(1, 18259520), (2, 9129760), (4, 4564880), (5, 3651904), (8, 2282440), (10, 1825952), (16, 1141220), (20, 912976), (32, 570610), (40, 456488), (43, 424640), (64, 285305), (80, 228244), (86, 212320), (160, 114122), (172, 106160), (215, 84928), (320, 57061), (344, 53080), (430, 42464), (688, 26540), (860, 21232), (1327, 13760), (1376, 13270), (1720, 10616), (2654, 6880), (2752, 6635), (3440, 5308)]