20225205

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1$

素因数の和:491

約数の個数: 96

約数和(自身を含む): 47174400

約数和(自身を除く): 26949195

約数列:

[1, 3, 5, 7, 9, 11, 13, 15, 21, 33, 35, 39, 45, 55, 63, 65, 77, 91, 99, 105, 117, 143, 165, 195, 231, 273, 315, 385, 429, 449, 455, 495, 585, 693, 715, 819, 1001, 1155, 1287, 1347, 1365, 2145, 2245, 3003, 3143, 3465, 4041, 4095, 4939, 5005, 5837, 6435, 6735, 9009, 9429, 14817, 15015, 15715, 17511, 20205, 24695, 28287, 29185, 34573, 40859, 44451, 45045, 47145, 52533, 64207, 74085, 87555, 103719, 122577, 141435, 172865, 192621, 204295, 222255, 262665, 311157, 321035, 367731, 449449, 518595, 577863, 612885, 963105, 1348347, 1555785, 1838655, 2247245, 2889315, 4045041, 6741735, 20225205]

約数ペア:

[(1, 20225205), (3, 6741735), (5, 4045041), (7, 2889315), (9, 2247245), (11, 1838655), (13, 1555785), (15, 1348347), (21, 963105), (33, 612885), (35, 577863), (39, 518595), (45, 449449), (55, 367731), (63, 321035), (65, 311157), (77, 262665), (91, 222255), (99, 204295), (105, 192621), (117, 172865), (143, 141435), (165, 122577), (195, 103719), (231, 87555), (273, 74085), (315, 64207), (385, 52533), (429, 47145), (449, 45045), (455, 44451), (495, 40859), (585, 34573), (693, 29185), (715, 28287), (819, 24695), (1001, 20205), (1155, 17511), (1287, 15715), (1347, 15015), (1365, 14817), (2145, 9429), (2245, 9009), (3003, 6735), (3143, 6435), (3465, 5837), (4041, 5005), (4095, 4939)]