289404895

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{3391}}^1$

素因数の和:3523

約数の個数: 24

約数和(自身を含む): 379890432

約数和(自身を除く): 90485537

約数列:

[1, 5, 13, 65, 101, 169, 505, 845, 1313, 3391, 6565, 16955, 17069, 44083, 85345, 220415, 342491, 573079, 1712455, 2865395, 4452383, 22261915, 57880979, 289404895]

約数ペア:

[(1, 289404895), (5, 57880979), (13, 22261915), (65, 4452383), (101, 2865395), (169, 1712455), (505, 573079), (845, 342491), (1313, 220415), (3391, 85345), (6565, 44083), (16955, 17069)]