129378364

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{111919}}^1$

素因数の和:111957

約数の個数: 18

約数和(自身を含む): 240516080

約数和(自身を除く): 111137716

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 111919, 223838, 447676, 1902623, 3805246, 7610492, 32344591, 64689182, 129378364]

約数ペア:

[(1, 129378364), (2, 64689182), (4, 32344591), (17, 7610492), (34, 3805246), (68, 1902623), (289, 447676), (578, 223838), (1156, 111919)]