280142005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{30139}}^1$

素因数の和:30181

約数の個数: 24

約数和(自身を含む): 397124640

約数和(自身を除く): 116982635

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 9295, 30139, 150695, 331529, 391807, 1657645, 1959035, 4309877, 5093491, 21549385, 25467455, 56028401, 280142005]

約数ペア:

[(1, 280142005), (5, 56028401), (11, 25467455), (13, 21549385), (55, 5093491), (65, 4309877), (143, 1959035), (169, 1657645), (715, 391807), (845, 331529), (1859, 150695), (9295, 30139)]