321824425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{7559}}^1$

素因数の和:7713

約数の個数: 24

約数和(自身を含む): 433097280

約数和(自身を除く): 111272855

約数列:

[1, 5, 13, 25, 65, 131, 325, 655, 1703, 3275, 7559, 8515, 37795, 42575, 98267, 188975, 491335, 990229, 2456675, 4951145, 12872977, 24755725, 64364885, 321824425]

約数ペア:

[(1, 321824425), (5, 64364885), (13, 24755725), (25, 12872977), (65, 4951145), (131, 2456675), (325, 990229), (655, 491335), (1703, 188975), (3275, 98267), (7559, 42575), (8515, 37795)]