80755720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1619}}^1$

素因数の和:1702

約数の個数: 64

約数和(自身を含む): 192456000

約数和(自身を除く): 111700280

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 43, 58, 86, 116, 145, 172, 215, 232, 290, 344, 430, 580, 860, 1160, 1247, 1619, 1720, 2494, 3238, 4988, 6235, 6476, 8095, 9976, 12470, 12952, 16190, 24940, 32380, 46951, 49880, 64760, 69617, 93902, 139234, 187804, 234755, 278468, 348085, 375608, 469510, 556936, 696170, 939020, 1392340, 1878040, 2018893, 2784680, 4037786, 8075572, 10094465, 16151144, 20188930, 40377860, 80755720]

約数ペア:

[(1, 80755720), (2, 40377860), (4, 20188930), (5, 16151144), (8, 10094465), (10, 8075572), (20, 4037786), (29, 2784680), (40, 2018893), (43, 1878040), (58, 1392340), (86, 939020), (116, 696170), (145, 556936), (172, 469510), (215, 375608), (232, 348085), (290, 278468), (344, 234755), (430, 187804), (580, 139234), (860, 93902), (1160, 69617), (1247, 64760), (1619, 49880), (1720, 46951), (2494, 32380), (3238, 24940), (4988, 16190), (6235, 12952), (6476, 12470), (8095, 9976)]