289432895

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{20981}}^1$

素因数の和:21106

約数の個数: 16

約数和(自身を含む): 362568960

約数和(自身を除く): 73136065

約数列:

[1, 5, 31, 89, 155, 445, 2759, 13795, 20981, 104905, 650411, 1867309, 3252055, 9336545, 57886579, 289432895]

約数ペア:

[(1, 289432895), (5, 57886579), (31, 9336545), (89, 3252055), (155, 1867309), (445, 650411), (2759, 104905), (13795, 20981)]