20642880

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{21503}}^1$

素因数の和:21523

約数の個数: 56

約数和(自身を含む): 65544192

約数和(自身を除く): 44901312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 21503, 43006, 64509, 86012, 107515, 129018, 172024, 215030, 258036, 322545, 344048, 430060, 516072, 645090, 688096, 860120, 1032144, 1290180, 1376192, 1720240, 2064288, 2580360, 3440480, 4128576, 5160720, 6880960, 10321440, 20642880]

約数ペア:

[(1, 20642880), (2, 10321440), (3, 6880960), (4, 5160720), (5, 4128576), (6, 3440480), (8, 2580360), (10, 2064288), (12, 1720240), (15, 1376192), (16, 1290180), (20, 1032144), (24, 860120), (30, 688096), (32, 645090), (40, 516072), (48, 430060), (60, 344048), (64, 322545), (80, 258036), (96, 215030), (120, 172024), (160, 129018), (192, 107515), (240, 86012), (320, 64509), (480, 43006), (960, 21503)]