128216894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{24781}}^1$

素因数の和:24995

約数の個数: 16

約数和(自身を含む): 208168800

約数和(自身を除く): 79951906

約数列:

[1, 2, 13, 26, 199, 398, 2587, 5174, 24781, 49562, 322153, 644306, 4931419, 9862838, 64108447, 128216894]

約数ペア:

[(1, 128216894), (2, 64108447), (13, 9862838), (26, 4931419), (199, 644306), (398, 322153), (2587, 49562), (5174, 24781)]