20299455

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1783}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 40075776

約数和(自身を除く): 19776321

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1783, 2277, 3795, 5349, 8915, 11385, 16047, 19613, 26745, 41009, 58839, 80235, 98065, 123027, 176517, 205045, 294195, 369081, 451099, 615135, 882585, 1353297, 1845405, 2255495, 4059891, 6766485, 20299455]

約数ペア:

[(1, 20299455), (3, 6766485), (5, 4059891), (9, 2255495), (11, 1845405), (15, 1353297), (23, 882585), (33, 615135), (45, 451099), (55, 369081), (69, 294195), (99, 205045), (115, 176517), (165, 123027), (207, 98065), (253, 80235), (345, 58839), (495, 41009), (759, 26745), (1035, 19613), (1265, 16047), (1783, 11385), (2277, 8915), (3795, 5349)]