20770005

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1733}}^1$

素因数の和:1805

約数の個数: 32

約数和(自身を含む): 35956224

約数和(自身を除く): 15186219

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 705, 799, 1733, 2397, 3995, 5199, 8665, 11985, 25995, 29461, 81451, 88383, 147305, 244353, 407255, 441915, 1221765, 1384667, 4154001, 6923335, 20770005]

約数ペア:

[(1, 20770005), (3, 6923335), (5, 4154001), (15, 1384667), (17, 1221765), (47, 441915), (51, 407255), (85, 244353), (141, 147305), (235, 88383), (255, 81451), (705, 29461), (799, 25995), (1733, 11985), (2397, 8665), (3995, 5199)]