20559680

素因数分解:

$2^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1367}}^1$

素因数の和:1431

約数の個数: 56

約数和(自身を含む): 50035968

約数和(自身を除く): 29476288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 160, 188, 235, 320, 376, 470, 752, 940, 1367, 1504, 1880, 2734, 3008, 3760, 5468, 6835, 7520, 10936, 13670, 15040, 21872, 27340, 43744, 54680, 64249, 87488, 109360, 128498, 218720, 256996, 321245, 437440, 513992, 642490, 1027984, 1284980, 2055968, 2569960, 4111936, 5139920, 10279840, 20559680]

約数ペア:

[(1, 20559680), (2, 10279840), (4, 5139920), (5, 4111936), (8, 2569960), (10, 2055968), (16, 1284980), (20, 1027984), (32, 642490), (40, 513992), (47, 437440), (64, 321245), (80, 256996), (94, 218720), (160, 128498), (188, 109360), (235, 87488), (320, 64249), (376, 54680), (470, 43744), (752, 27340), (940, 21872), (1367, 15040), (1504, 13670), (1880, 10936), (2734, 7520), (3008, 6835), (3760, 5468)]