20161397425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{10939}}^1$

素因数の和:11122

約数の個数: 48

約数和(自身を含む): 27690102720

約数和(自身を除く): 7528705295

約数列:

[1, 5, 13, 25, 53, 65, 107, 265, 325, 535, 689, 1325, 1391, 2675, 3445, 5671, 6955, 10939, 17225, 28355, 34775, 54695, 73723, 141775, 142207, 273475, 368615, 579767, 711035, 1170473, 1843075, 2898835, 3555175, 5852365, 7536971, 14494175, 15216149, 29261825, 37684855, 62035069, 76080745, 188424275, 310175345, 380403725, 806455897, 1550876725, 4032279485, 20161397425]

約数ペア:

[(1, 20161397425), (5, 4032279485), (13, 1550876725), (25, 806455897), (53, 380403725), (65, 310175345), (107, 188424275), (265, 76080745), (325, 62035069), (535, 37684855), (689, 29261825), (1325, 15216149), (1391, 14494175), (2675, 7536971), (3445, 5852365), (5671, 3555175), (6955, 2898835), (10939, 1843075), (17225, 1170473), (28355, 711035), (34775, 579767), (54695, 368615), (73723, 273475), (141775, 142207)]