644637314

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{239999}}^1$

素因数の和:240097

約数の個数: 16

約数和(自身を含む): 1036800000

約数和(自身を除く): 392162686

約数列:

[1, 2, 17, 34, 79, 158, 1343, 2686, 239999, 479998, 4079983, 8159966, 18959921, 37919842, 322318657, 644637314]

約数ペア:

[(1, 644637314), (2, 322318657), (17, 37919842), (34, 18959921), (79, 8159966), (158, 4079983), (1343, 479998), (2686, 239999)]