20090983869

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{487}}^1\times {\mathrm{881}}^1$

素因数の和:1439

約数の個数: 72

約数和(自身を含む): 32744327616

約数和(自身を除く): 12653343747

約数列:

[1, 3, 9, 11, 33, 43, 99, 121, 129, 363, 387, 473, 487, 881, 1089, 1419, 1461, 2643, 4257, 4383, 5203, 5357, 7929, 9691, 15609, 16071, 20941, 29073, 37883, 46827, 48213, 58927, 62823, 87219, 106601, 113649, 176781, 188469, 230351, 319803, 340947, 416713, 429047, 530343, 691053, 959409, 1250139, 1287141, 2073159, 2533861, 3750417, 3861423, 4583843, 4719517, 7601583, 13751529, 14158551, 18449021, 22804749, 41254587, 42475653, 51914687, 55347063, 155744061, 166041189, 202939231, 467232183, 608817693, 1826453079, 2232331541, 6696994623, 20090983869]

約数ペア:

[(1, 20090983869), (3, 6696994623), (9, 2232331541), (11, 1826453079), (33, 608817693), (43, 467232183), (99, 202939231), (121, 166041189), (129, 155744061), (363, 55347063), (387, 51914687), (473, 42475653), (487, 41254587), (881, 22804749), (1089, 18449021), (1419, 14158551), (1461, 13751529), (2643, 7601583), (4257, 4719517), (4383, 4583843), (5203, 3861423), (5357, 3750417), (7929, 2533861), (9691, 2073159), (15609, 1287141), (16071, 1250139), (20941, 959409), (29073, 691053), (37883, 530343), (46827, 429047), (48213, 416713), (58927, 340947), (62823, 319803), (87219, 230351), (106601, 188469), (113649, 176781)]