20061680

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4111}}^1$

素因数の和:4185

約数の個数: 40

約数和(自身を含む): 47419584

約数和(自身を除く): 27357904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4111, 4880, 8222, 16444, 20555, 32888, 41110, 65776, 82220, 164440, 250771, 328880, 501542, 1003084, 1253855, 2006168, 2507710, 4012336, 5015420, 10030840, 20061680]

約数ペア:

[(1, 20061680), (2, 10030840), (4, 5015420), (5, 4012336), (8, 2507710), (10, 2006168), (16, 1253855), (20, 1003084), (40, 501542), (61, 328880), (80, 250771), (122, 164440), (244, 82220), (305, 65776), (488, 41110), (610, 32888), (976, 20555), (1220, 16444), (2440, 8222), (4111, 4880)]