289957105

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{21019}}^1$

素因数の和:21144

約数の個数: 16

約数和(自身を含む): 363225600

約数和(自身を除く): 73268495

約数列:

[1, 5, 31, 89, 155, 445, 2759, 13795, 21019, 105095, 651589, 1870691, 3257945, 9353455, 57991421, 289957105]

約数ペア:

[(1, 289957105), (5, 57991421), (31, 9353455), (89, 3257945), (155, 1870691), (445, 651589), (2759, 105095), (13795, 21019)]