20257900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15583}}^1$

素因数の和:15610

約数の個数: 36

約数和(自身を含む): 47344192

約数和(自身を除く): 27086292

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15583, 31166, 62332, 77915, 155830, 202579, 311660, 389575, 405158, 779150, 810316, 1012895, 1558300, 2025790, 4051580, 5064475, 10128950, 20257900]

約数ペア:

[(1, 20257900), (2, 10128950), (4, 5064475), (5, 4051580), (10, 2025790), (13, 1558300), (20, 1012895), (25, 810316), (26, 779150), (50, 405158), (52, 389575), (65, 311660), (100, 202579), (130, 155830), (260, 77915), (325, 62332), (650, 31166), (1300, 15583)]