19786360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{233}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 49027680

約数和(自身を除く): 29241320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 193, 220, 233, 386, 440, 466, 772, 932, 965, 1165, 1544, 1864, 1930, 2123, 2330, 2563, 3860, 4246, 4660, 5126, 7720, 8492, 9320, 10252, 10615, 12815, 16984, 20504, 21230, 25630, 42460, 44969, 51260, 84920, 89938, 102520, 179876, 224845, 359752, 449690, 494659, 899380, 989318, 1798760, 1978636, 2473295, 3957272, 4946590, 9893180, 19786360]

約数ペア:

[(1, 19786360), (2, 9893180), (4, 4946590), (5, 3957272), (8, 2473295), (10, 1978636), (11, 1798760), (20, 989318), (22, 899380), (40, 494659), (44, 449690), (55, 359752), (88, 224845), (110, 179876), (193, 102520), (220, 89938), (233, 84920), (386, 51260), (440, 44969), (466, 42460), (772, 25630), (932, 21230), (965, 20504), (1165, 16984), (1544, 12815), (1864, 10615), (1930, 10252), (2123, 9320), (2330, 8492), (2563, 7720), (3860, 5126), (4246, 4660)]