198798925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 269399424

約数和(自身を除く): 70600499

約数列:

[1, 5, 13, 25, 65, 169, 211, 223, 325, 845, 1055, 1115, 2743, 2899, 4225, 5275, 5575, 13715, 14495, 35659, 37687, 47053, 68575, 72475, 178295, 188435, 235265, 611689, 891475, 942175, 1176325, 3058445, 7951957, 15292225, 39759785, 198798925]

約数ペア:

[(1, 198798925), (5, 39759785), (13, 15292225), (25, 7951957), (65, 3058445), (169, 1176325), (211, 942175), (223, 891475), (325, 611689), (845, 235265), (1055, 188435), (1115, 178295), (2743, 72475), (2899, 68575), (4225, 47053), (5275, 37687), (5575, 35659), (13715, 14495)]