12806505

素因数分解:

$3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:427

約数の個数: 40

約数和(自身を含む): 23255232

約数和(自身を除く): 10448727

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 103, 135, 307, 309, 405, 515, 921, 927, 1535, 1545, 2763, 2781, 4605, 4635, 8289, 8343, 13815, 13905, 24867, 31621, 41445, 41715, 94863, 124335, 158105, 284589, 474315, 853767, 1422945, 2561301, 4268835, 12806505]

約数ペア:

[(1, 12806505), (3, 4268835), (5, 2561301), (9, 1422945), (15, 853767), (27, 474315), (45, 284589), (81, 158105), (103, 124335), (135, 94863), (307, 41715), (309, 41445), (405, 31621), (515, 24867), (921, 13905), (927, 13815), (1535, 8343), (1545, 8289), (2763, 4635), (2781, 4605)]