20287600

素因数分解:

$2^4\times 5^2\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:842

約数の個数: 60

約数和(自身を含む): 49533784

約数和(自身を除く): 29246184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 67, 80, 100, 134, 200, 268, 335, 400, 536, 670, 757, 1072, 1340, 1514, 1675, 2680, 3028, 3350, 3785, 5360, 6056, 6700, 7570, 12112, 13400, 15140, 18925, 26800, 30280, 37850, 50719, 60560, 75700, 101438, 151400, 202876, 253595, 302800, 405752, 507190, 811504, 1014380, 1267975, 2028760, 2535950, 4057520, 5071900, 10143800, 20287600]

約数ペア:

[(1, 20287600), (2, 10143800), (4, 5071900), (5, 4057520), (8, 2535950), (10, 2028760), (16, 1267975), (20, 1014380), (25, 811504), (40, 507190), (50, 405752), (67, 302800), (80, 253595), (100, 202876), (134, 151400), (200, 101438), (268, 75700), (335, 60560), (400, 50719), (536, 37850), (670, 30280), (757, 26800), (1072, 18925), (1340, 15140), (1514, 13400), (1675, 12112), (2680, 7570), (3028, 6700), (3350, 6056), (3785, 5360)]