1291218245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{230369}}^1$

素因数の和:230452

約数の個数: 16

約数和(自身を含む): 1658664000

約数和(自身を除く): 367445755

約数列:

[1, 5, 19, 59, 95, 295, 1121, 5605, 230369, 1151845, 4377011, 13591771, 21885055, 67958855, 258243649, 1291218245]

約数ペア:

[(1, 1291218245), (5, 258243649), (19, 67958855), (59, 21885055), (95, 13591771), (295, 4377011), (1121, 1151845), (5605, 230369)]