20198991715

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1\times {\mathrm{32563}}^1$

素因数の和:33091

約数の個数: 32

約数和(自身を含む): 28510433280

約数和(自身を除く): 8311441565

約数列:

[1, 5, 7, 35, 37, 185, 259, 479, 1295, 2395, 3353, 16765, 17723, 32563, 88615, 124061, 162815, 227941, 620305, 1139705, 1204831, 6024155, 8433817, 15597677, 42169085, 77988385, 109183739, 545918695, 577114049, 2885570245, 4039798343, 20198991715]

約数ペア:

[(1, 20198991715), (5, 4039798343), (7, 2885570245), (35, 577114049), (37, 545918695), (185, 109183739), (259, 77988385), (479, 42169085), (1295, 15597677), (2395, 8433817), (3353, 6024155), (16765, 1204831), (17723, 1139705), (32563, 620305), (88615, 227941), (124061, 162815)]