645940226

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{88997}}^1$

素因数の和:89209

約数の個数: 16

約数和(自身を含む): 1025256960

約数和(自身を除く): 379316734

約数列:

[1, 2, 19, 38, 191, 382, 3629, 7258, 88997, 177994, 1690943, 3381886, 16998427, 33996854, 322970113, 645940226]

約数ペア:

[(1, 645940226), (2, 322970113), (19, 33996854), (38, 16998427), (191, 3381886), (382, 1690943), (3629, 177994), (7258, 88997)]