20068155

素因数分解:

$3^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:302

約数の個数: 48

約数和(自身を含む): 36691200

約数和(自身を除く): 16623045

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 83, 135, 199, 243, 249, 405, 415, 597, 747, 995, 1215, 1245, 1791, 2241, 2985, 3735, 5373, 6723, 8955, 11205, 16119, 16517, 20169, 26865, 33615, 48357, 49551, 80595, 82585, 100845, 148653, 241785, 247755, 445959, 743265, 1337877, 2229795, 4013631, 6689385, 20068155]

約数ペア:

[(1, 20068155), (3, 6689385), (5, 4013631), (9, 2229795), (15, 1337877), (27, 743265), (45, 445959), (81, 247755), (83, 241785), (135, 148653), (199, 100845), (243, 82585), (249, 80595), (405, 49551), (415, 48357), (597, 33615), (747, 26865), (995, 20169), (1215, 16517), (1245, 16119), (1791, 11205), (2241, 8955), (2985, 6723), (3735, 5373)]