289190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{239}}^1$

素因数の和:268

約数の個数: 24

約数和(自身を含む): 574560

約数和(自身を除く): 285370

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 239, 242, 478, 605, 1195, 1210, 2390, 2629, 5258, 13145, 26290, 28919, 57838, 144595, 289190]

約数ペア:

[(1, 289190), (2, 144595), (5, 57838), (10, 28919), (11, 26290), (22, 13145), (55, 5258), (110, 2629), (121, 2390), (239, 1210), (242, 1195), (478, 605)]