25880205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 48722688

約数和(自身を除く): 22842483

約数列:

[1, 3, 5, 13, 15, 17, 37, 39, 51, 65, 85, 111, 185, 195, 211, 221, 255, 481, 555, 629, 633, 663, 1055, 1105, 1443, 1887, 2405, 2743, 3145, 3165, 3315, 3587, 7215, 7807, 8177, 8229, 9435, 10761, 13715, 17935, 23421, 24531, 39035, 40885, 41145, 46631, 53805, 101491, 117105, 122655, 132719, 139893, 233155, 304473, 398157, 507455, 663595, 699465, 1522365, 1725347, 1990785, 5176041, 8626735, 25880205]

約数ペア:

[(1, 25880205), (3, 8626735), (5, 5176041), (13, 1990785), (15, 1725347), (17, 1522365), (37, 699465), (39, 663595), (51, 507455), (65, 398157), (85, 304473), (111, 233155), (185, 139893), (195, 132719), (211, 122655), (221, 117105), (255, 101491), (481, 53805), (555, 46631), (629, 41145), (633, 40885), (663, 39035), (1055, 24531), (1105, 23421), (1443, 17935), (1887, 13715), (2405, 10761), (2743, 9435), (3145, 8229), (3165, 8177), (3315, 7807), (3587, 7215)]