27019820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 58974048

約数和(自身を除く): 31954228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 397, 410, 415, 794, 820, 830, 1588, 1660, 1985, 3403, 3970, 6806, 7940, 13612, 16277, 17015, 32554, 32951, 34030, 65108, 65902, 68060, 81385, 131804, 162770, 164755, 325540, 329510, 659020, 1350991, 2701982, 5403964, 6754955, 13509910, 27019820]

約数ペア:

[(1, 27019820), (2, 13509910), (4, 6754955), (5, 5403964), (10, 2701982), (20, 1350991), (41, 659020), (82, 329510), (83, 325540), (164, 164755), (166, 162770), (205, 131804), (332, 81385), (397, 68060), (410, 65902), (415, 65108), (794, 34030), (820, 32951), (830, 32554), (1588, 17015), (1660, 16277), (1985, 13612), (3403, 7940), (3970, 6806)]