128978886

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{320843}}^1$

素因数の和:320915

約数の個数: 16

約数和(自身を含む): 261808704

約数和(自身を除く): 132829818

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 320843, 641686, 962529, 1925058, 21496481, 42992962, 64489443, 128978886]

約数ペア:

[(1, 128978886), (2, 64489443), (3, 42992962), (6, 21496481), (67, 1925058), (134, 962529), (201, 641686), (402, 320843)]