217872540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1210403}}^1$

素因数の和:1210418

約数の個数: 36

約数和(自身を含む): 660880584

約数和(自身を除く): 443008044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1210403, 2420806, 3631209, 4841612, 6052015, 7262418, 10893627, 12104030, 14524836, 18156045, 21787254, 24208060, 36312090, 43574508, 54468135, 72624180, 108936270, 217872540]

約数ペア:

[(1, 217872540), (2, 108936270), (3, 72624180), (4, 54468135), (5, 43574508), (6, 36312090), (9, 24208060), (10, 21787254), (12, 18156045), (15, 14524836), (18, 12104030), (20, 10893627), (30, 7262418), (36, 6052015), (45, 4841612), (60, 3631209), (90, 2420806), (180, 1210403)]