27899905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 10420223

約数列:

[1, 5, 11, 43, 47, 55, 215, 235, 251, 473, 517, 1255, 2021, 2365, 2585, 2761, 10105, 10793, 11797, 13805, 22231, 53965, 58985, 111155, 118723, 129767, 507271, 593615, 648835, 2536355, 5579981, 27899905]

約数ペア:

[(1, 27899905), (5, 5579981), (11, 2536355), (43, 648835), (47, 593615), (55, 507271), (215, 129767), (235, 118723), (251, 111155), (473, 58985), (517, 53965), (1255, 22231), (2021, 13805), (2365, 11797), (2585, 10793), (2761, 10105)]