81432135

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3001}}^1$

素因数の和:3085

約数の個数: 40

約数和(自身を含む): 148202736

約数和(自身を除く): 66770601

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 1005, 1809, 3001, 3015, 5427, 9003, 9045, 15005, 27009, 27135, 45015, 81027, 135045, 201067, 243081, 405135, 603201, 1005335, 1215405, 1809603, 3016005, 5428809, 9048015, 16286427, 27144045, 81432135]

約数ペア:

[(1, 81432135), (3, 27144045), (5, 16286427), (9, 9048015), (15, 5428809), (27, 3016005), (45, 1809603), (67, 1215405), (81, 1005335), (135, 603201), (201, 405135), (335, 243081), (405, 201067), (603, 135045), (1005, 81027), (1809, 45015), (3001, 27135), (3015, 27009), (5427, 15005), (9003, 9045)]