645255

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1103}}^1$

素因数の和:1127

約数の個数: 24

約数和(自身を含む): 1205568

約数和(自身を除く): 560313

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 1103, 3309, 5515, 9927, 14339, 16545, 43017, 49635, 71695, 129051, 215085, 645255]

約数ペア:

[(1, 645255), (3, 215085), (5, 129051), (9, 71695), (13, 49635), (15, 43017), (39, 16545), (45, 14339), (65, 9927), (117, 5515), (195, 3309), (585, 1103)]