181221180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{431479}}^1$

素因数の和:431498

約数の個数: 48

約数和(自身を含む): 579909120

約数和(自身を除く): 398687940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 431479, 862958, 1294437, 1725916, 2157395, 2588874, 3020353, 4314790, 5177748, 6040706, 6472185, 8629580, 9061059, 12081412, 12944370, 15101765, 18122118, 25888740, 30203530, 36244236, 45305295, 60407060, 90610590, 181221180]

約数ペア:

[(1, 181221180), (2, 90610590), (3, 60407060), (4, 45305295), (5, 36244236), (6, 30203530), (7, 25888740), (10, 18122118), (12, 15101765), (14, 12944370), (15, 12081412), (20, 9061059), (21, 8629580), (28, 6472185), (30, 6040706), (35, 5177748), (42, 4314790), (60, 3020353), (70, 2588874), (84, 2157395), (105, 1725916), (140, 1294437), (210, 862958), (420, 431479)]