2019540985

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{397}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 3087512064

約数和(自身を除く): 1067971079

約数列:

[1, 5, 7, 11, 35, 55, 73, 77, 181, 365, 385, 397, 511, 803, 905, 1267, 1985, 1991, 2555, 2779, 4015, 4367, 5621, 6335, 9955, 13213, 13895, 13937, 21835, 28105, 28981, 30569, 66065, 69685, 71857, 92491, 144905, 145343, 152845, 202867, 318791, 359285, 462455, 502999, 726715, 790427, 1014335, 1017401, 1593955, 2231537, 2514995, 3952135, 5087005, 5245561, 5532989, 11157685, 26227805, 27664945, 36718927, 57701171, 183594635, 288505855, 403908197, 2019540985]

約数ペア:

[(1, 2019540985), (5, 403908197), (7, 288505855), (11, 183594635), (35, 57701171), (55, 36718927), (73, 27664945), (77, 26227805), (181, 11157685), (365, 5532989), (385, 5245561), (397, 5087005), (511, 3952135), (803, 2514995), (905, 2231537), (1267, 1593955), (1985, 1017401), (1991, 1014335), (2555, 790427), (2779, 726715), (4015, 502999), (4367, 462455), (5621, 359285), (6335, 318791), (9955, 202867), (13213, 152845), (13895, 145343), (13937, 144905), (21835, 92491), (28105, 71857), (28981, 69685), (30569, 66065)]