289883945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{491}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 388813824

約数和(自身を除く): 98929879

約数列:

[1, 5, 13, 31, 65, 155, 293, 403, 491, 1465, 2015, 2455, 3809, 6383, 9083, 15221, 19045, 31915, 45415, 76105, 118079, 143863, 197873, 590395, 719315, 989365, 1870219, 4459753, 9351095, 22298765, 57976789, 289883945]

約数ペア:

[(1, 289883945), (5, 57976789), (13, 22298765), (31, 9351095), (65, 4459753), (155, 1870219), (293, 989365), (403, 719315), (491, 590395), (1465, 197873), (2015, 143863), (2455, 118079), (3809, 76105), (6383, 45415), (9083, 31915), (15221, 19045)]