20767590

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{25639}}^1$

素因数の和:25658

約数の個数: 40

約数和(自身を含む): 55843920

約数和(自身を除く): 35076330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 25639, 51278, 76917, 128195, 153834, 230751, 256390, 384585, 461502, 692253, 769170, 1153755, 1384506, 2076759, 2307510, 3461265, 4153518, 6922530, 10383795, 20767590]

約数ペア:

[(1, 20767590), (2, 10383795), (3, 6922530), (5, 4153518), (6, 3461265), (9, 2307510), (10, 2076759), (15, 1384506), (18, 1153755), (27, 769170), (30, 692253), (45, 461502), (54, 384585), (81, 256390), (90, 230751), (135, 153834), (162, 128195), (270, 76917), (405, 51278), (810, 25639)]