20781617636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{347}}^1\times {\mathrm{4943}}^1$

素因数の和:5540

約数の個数: 48

約数和(自身を含む): 39454781184

約数和(自身を除く): 18673163548

約数列:

[1, 2, 4, 13, 26, 52, 233, 347, 466, 694, 932, 1388, 3029, 4511, 4943, 6058, 9022, 9886, 12116, 18044, 19772, 64259, 80851, 128518, 161702, 257036, 323404, 1051063, 1151719, 1715221, 2102126, 2303438, 3430442, 4204252, 4606876, 6860884, 14972347, 22297873, 29944694, 44595746, 59889388, 89191492, 399646493, 799292986, 1598585972, 5195404409, 10390808818, 20781617636]

約数ペア:

[(1, 20781617636), (2, 10390808818), (4, 5195404409), (13, 1598585972), (26, 799292986), (52, 399646493), (233, 89191492), (347, 59889388), (466, 44595746), (694, 29944694), (932, 22297873), (1388, 14972347), (3029, 6860884), (4511, 4606876), (4943, 4204252), (6058, 3430442), (9022, 2303438), (9886, 2102126), (12116, 1715221), (18044, 1151719), (19772, 1051063), (64259, 323404), (80851, 257036), (128518, 161702)]