28001025

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3191}}^1$

素因数の和:3223

約数の個数: 48

約数和(自身を含む): 55413120

約数和(自身を除く): 27412095

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2925, 3191, 8775, 9573, 15955, 28719, 41483, 47865, 79775, 86157, 124449, 143595, 207415, 239325, 373347, 430785, 622245, 717975, 1037075, 1120041, 1866735, 2153925, 3111225, 5600205, 9333675, 28001025]

約数ペア:

[(1, 28001025), (3, 9333675), (5, 5600205), (9, 3111225), (13, 2153925), (15, 1866735), (25, 1120041), (27, 1037075), (39, 717975), (45, 622245), (65, 430785), (75, 373347), (117, 239325), (135, 207415), (195, 143595), (225, 124449), (325, 86157), (351, 79775), (585, 47865), (675, 41483), (975, 28719), (1755, 15955), (2925, 9573), (3191, 8775)]