8991970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^2$

素因数の和:546

約数の個数: 24

約数和(自身を含む): 17497116

約数和(自身を除く): 8505146

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 263, 526, 1315, 2630, 3419, 6838, 17095, 34190, 69169, 138338, 345845, 691690, 899197, 1798394, 4495985, 8991970]

約数ペア:

[(1, 8991970), (2, 4495985), (5, 1798394), (10, 899197), (13, 691690), (26, 345845), (65, 138338), (130, 69169), (263, 34190), (526, 17095), (1315, 6838), (2630, 3419)]