20257040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13327}}^1$

素因数の和:13359

約数の個数: 40

約数和(自身を含む): 49580160

約数和(自身を除く): 29323120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 13327, 26654, 53308, 66635, 106616, 133270, 213232, 253213, 266540, 506426, 533080, 1012852, 1066160, 1266065, 2025704, 2532130, 4051408, 5064260, 10128520, 20257040]

約数ペア:

[(1, 20257040), (2, 10128520), (4, 5064260), (5, 4051408), (8, 2532130), (10, 2025704), (16, 1266065), (19, 1066160), (20, 1012852), (38, 533080), (40, 506426), (76, 266540), (80, 253213), (95, 213232), (152, 133270), (190, 106616), (304, 66635), (380, 53308), (760, 26654), (1520, 13327)]