19288115

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 31173984

約数和(自身を除く): 11885869

約数列:

[1, 5, 7, 11, 17, 35, 49, 55, 77, 85, 119, 187, 245, 385, 421, 539, 595, 833, 935, 1309, 2105, 2695, 2947, 4165, 4631, 6545, 7157, 9163, 14735, 20629, 23155, 32417, 35785, 45815, 50099, 78727, 103145, 162085, 226919, 250495, 350693, 393635, 551089, 1134595, 1753465, 2755445, 3857623, 19288115]

約数ペア:

[(1, 19288115), (5, 3857623), (7, 2755445), (11, 1753465), (17, 1134595), (35, 551089), (49, 393635), (55, 350693), (77, 250495), (85, 226919), (119, 162085), (187, 103145), (245, 78727), (385, 50099), (421, 45815), (539, 35785), (595, 32417), (833, 23155), (935, 20629), (1309, 14735), (2105, 9163), (2695, 7157), (2947, 6545), (4165, 4631)]