20262800

素因数分解:

$2^4\times 5^2\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:480

約数の個数: 60

約数和(自身を含む): 49126320

約数和(自身を除く): 28863520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 179, 200, 283, 358, 400, 566, 716, 895, 1132, 1415, 1432, 1790, 2264, 2830, 2864, 3580, 4475, 4528, 5660, 7075, 7160, 8950, 11320, 14150, 14320, 17900, 22640, 28300, 35800, 50657, 56600, 71600, 101314, 113200, 202628, 253285, 405256, 506570, 810512, 1013140, 1266425, 2026280, 2532850, 4052560, 5065700, 10131400, 20262800]

約数ペア:

[(1, 20262800), (2, 10131400), (4, 5065700), (5, 4052560), (8, 2532850), (10, 2026280), (16, 1266425), (20, 1013140), (25, 810512), (40, 506570), (50, 405256), (80, 253285), (100, 202628), (179, 113200), (200, 101314), (283, 71600), (358, 56600), (400, 50657), (566, 35800), (716, 28300), (895, 22640), (1132, 17900), (1415, 14320), (1432, 14150), (1790, 11320), (2264, 8950), (2830, 7160), (2864, 7075), (3580, 5660), (4475, 4528)]