12908390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{491}}^1$

素因数の和:748

約数の個数: 32

約数和(自身を含む): 25505280

約数和(自身を除く): 12596890

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 239, 478, 491, 982, 1195, 2390, 2455, 2629, 4910, 5258, 5401, 10802, 13145, 26290, 27005, 54010, 117349, 234698, 586745, 1173490, 1290839, 2581678, 6454195, 12908390]

約数ペア:

[(1, 12908390), (2, 6454195), (5, 2581678), (10, 1290839), (11, 1173490), (22, 586745), (55, 234698), (110, 117349), (239, 54010), (478, 27005), (491, 26290), (982, 13145), (1195, 10802), (2390, 5401), (2455, 5258), (2629, 4910)]