668870462

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{40009}}^1$

素因数の和:40667

約数の個数: 16

約数和(自身を含む): 1082190480

約数和(自身を除く): 413320018

約数列:

[1, 2, 13, 26, 643, 1286, 8359, 16718, 40009, 80018, 520117, 1040234, 25725787, 51451574, 334435231, 668870462]

約数ペア:

[(1, 668870462), (2, 334435231), (13, 51451574), (26, 25725787), (643, 1040234), (1286, 520117), (8359, 80018), (16718, 40009)]