398684162

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 635040000

約数和(自身を除く): 236355838

約数列:

[1, 2, 23, 46, 97, 194, 199, 398, 449, 898, 2231, 4462, 4577, 9154, 10327, 19303, 20654, 38606, 43553, 87106, 89351, 178702, 443969, 887938, 1001719, 2003438, 2055073, 4110146, 8667047, 17334094, 199342081, 398684162]

約数ペア:

[(1, 398684162), (2, 199342081), (23, 17334094), (46, 8667047), (97, 4110146), (194, 2055073), (199, 2003438), (398, 1001719), (449, 887938), (898, 443969), (2231, 178702), (4462, 89351), (4577, 87106), (9154, 43553), (10327, 38606), (19303, 20654)]