642508495

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1\times {\mathrm{1289}}^1$

素因数の和:2186

約数の個数: 16

約数和(自身を含む): 778520160

約数和(自身を除く): 136011665

約数列:

[1, 5, 131, 655, 761, 1289, 3805, 6445, 99691, 168859, 498455, 844295, 980929, 4904645, 128501699, 642508495]

約数ペア:

[(1, 642508495), (5, 128501699), (131, 4904645), (655, 980929), (761, 844295), (1289, 498455), (3805, 168859), (6445, 99691)]