128345425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12739}}^1$

素因数の和:12793

約数の個数: 24

約数和(自身を含む): 176933120

約数和(自身を除く): 48587695

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 12739, 63695, 165607, 318475, 394909, 828035, 1974545, 4140175, 5133817, 9872725, 25669085, 128345425]

約数ペア:

[(1, 128345425), (5, 25669085), (13, 9872725), (25, 5133817), (31, 4140175), (65, 1974545), (155, 828035), (325, 394909), (403, 318475), (775, 165607), (2015, 63695), (10075, 12739)]