28178240

素因数分解:

$2^6\times 5^1\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:699

約数の個数: 56

約数和(自身を含む): 67619880

約数和(自身を除く): 39441640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 173, 320, 346, 509, 692, 865, 1018, 1384, 1730, 2036, 2545, 2768, 3460, 4072, 5090, 5536, 6920, 8144, 10180, 11072, 13840, 16288, 20360, 27680, 32576, 40720, 55360, 81440, 88057, 162880, 176114, 352228, 440285, 704456, 880570, 1408912, 1761140, 2817824, 3522280, 5635648, 7044560, 14089120, 28178240]

約数ペア:

[(1, 28178240), (2, 14089120), (4, 7044560), (5, 5635648), (8, 3522280), (10, 2817824), (16, 1761140), (20, 1408912), (32, 880570), (40, 704456), (64, 440285), (80, 352228), (160, 176114), (173, 162880), (320, 88057), (346, 81440), (509, 55360), (692, 40720), (865, 32576), (1018, 27680), (1384, 20360), (1730, 16288), (2036, 13840), (2545, 11072), (2768, 10180), (3460, 8144), (4072, 6920), (5090, 5536)]