12920715

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:601

約数の個数: 40

約数和(自身を含む): 23586288

約数和(自身を除く): 10665573

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 523, 549, 915, 1569, 1647, 2615, 2745, 4707, 4941, 7845, 8235, 14121, 23535, 24705, 31903, 42363, 70605, 95709, 159515, 211815, 287127, 478545, 861381, 1435635, 2584143, 4306905, 12920715]

約数ペア:

[(1, 12920715), (3, 4306905), (5, 2584143), (9, 1435635), (15, 861381), (27, 478545), (45, 287127), (61, 211815), (81, 159515), (135, 95709), (183, 70605), (305, 42363), (405, 31903), (523, 24705), (549, 23535), (915, 14121), (1569, 8235), (1647, 7845), (2615, 4941), (2745, 4707)]