20206765

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 6646355

約数列:

[1, 5, 23, 29, 73, 83, 115, 145, 365, 415, 667, 1679, 1909, 2117, 2407, 3335, 6059, 8395, 9545, 10585, 12035, 30295, 48691, 55361, 139357, 175711, 243455, 276805, 696785, 878555, 4041353, 20206765]

約数ペア:

[(1, 20206765), (5, 4041353), (23, 878555), (29, 696785), (73, 276805), (83, 243455), (115, 175711), (145, 139357), (365, 55361), (415, 48691), (667, 30295), (1679, 12035), (1909, 10585), (2117, 9545), (2407, 8395), (3335, 6059)]