201261905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 265827744

約数和(自身を除く): 64565839

約数列:

[1, 5, 13, 65, 97, 137, 233, 485, 685, 1165, 1261, 1781, 3029, 6305, 8905, 13289, 15145, 22601, 31921, 66445, 113005, 159605, 172757, 293813, 414973, 863785, 1469065, 2074865, 3096337, 15481685, 40252381, 201261905]

約数ペア:

[(1, 201261905), (5, 40252381), (13, 15481685), (65, 3096337), (97, 2074865), (137, 1469065), (233, 863785), (485, 414973), (685, 293813), (1165, 172757), (1261, 159605), (1781, 113005), (3029, 66445), (6305, 31921), (8905, 22601), (13289, 15145)]