28138168

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{521}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 54434160

約数和(自身を除く): 26295992

約数列:

[1, 2, 4, 8, 43, 86, 157, 172, 314, 344, 521, 628, 1042, 1256, 2084, 4168, 6751, 13502, 22403, 27004, 44806, 54008, 81797, 89612, 163594, 179224, 327188, 654376, 3517271, 7034542, 14069084, 28138168]

約数ペア:

[(1, 28138168), (2, 14069084), (4, 7034542), (8, 3517271), (43, 654376), (86, 327188), (157, 179224), (172, 163594), (314, 89612), (344, 81797), (521, 54008), (628, 44806), (1042, 27004), (1256, 22403), (2084, 13502), (4168, 6751)]