1390235

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 2184192

約数和(自身を除く): 793957

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 115, 157, 161, 253, 385, 785, 805, 1099, 1265, 1727, 1771, 3611, 5495, 8635, 8855, 12089, 18055, 25277, 39721, 60445, 126385, 198605, 278047, 1390235]

約数ペア:

[(1, 1390235), (5, 278047), (7, 198605), (11, 126385), (23, 60445), (35, 39721), (55, 25277), (77, 18055), (115, 12089), (157, 8855), (161, 8635), (253, 5495), (385, 3611), (785, 1771), (805, 1727), (1099, 1265)]