668246878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{383609}}^1$

素因数の和:383691

約数の個数: 16

約数和(自身を含む): 1095590160

約数和(自身を除く): 427343282

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 383609, 767218, 4986917, 9973834, 25701803, 51403606, 334123439, 668246878]

約数ペア:

[(1, 668246878), (2, 334123439), (13, 51403606), (26, 25701803), (67, 9973834), (134, 4986917), (871, 767218), (1742, 383609)]