77981319

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 132249600

約数和(自身を除く): 54268281

約数列:

[1, 3, 9, 13, 27, 29, 39, 47, 87, 117, 141, 163, 261, 351, 377, 423, 489, 611, 783, 1131, 1269, 1363, 1467, 1833, 2119, 3393, 4089, 4401, 4727, 5499, 6357, 7661, 10179, 12267, 14181, 16497, 17719, 19071, 22983, 36801, 42543, 53157, 57213, 61451, 68949, 99593, 127629, 159471, 184353, 206847, 222169, 298779, 478413, 553059, 666507, 896337, 1659177, 1999521, 2689011, 2888197, 5998563, 8664591, 25993773, 77981319]

約数ペア:

[(1, 77981319), (3, 25993773), (9, 8664591), (13, 5998563), (27, 2888197), (29, 2689011), (39, 1999521), (47, 1659177), (87, 896337), (117, 666507), (141, 553059), (163, 478413), (261, 298779), (351, 222169), (377, 206847), (423, 184353), (489, 159471), (611, 127629), (783, 99593), (1131, 68949), (1269, 61451), (1363, 57213), (1467, 53157), (1833, 42543), (2119, 36801), (3393, 22983), (4089, 19071), (4401, 17719), (4727, 16497), (5499, 14181), (6357, 12267), (7661, 10179)]