257121564

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1\times {\mathrm{337}}^1$

素因数の和:675

約数の個数: 96

約数和(自身を含む): 712298496

約数和(自身を除く): 455176932

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 124, 186, 217, 293, 337, 372, 434, 586, 651, 674, 868, 879, 1011, 1172, 1302, 1348, 1758, 2022, 2051, 2359, 2604, 3516, 4044, 4102, 4718, 6153, 7077, 8204, 9083, 9436, 10447, 12306, 14154, 18166, 20894, 24612, 27249, 28308, 31341, 36332, 41788, 54498, 62682, 63581, 73129, 98741, 108996, 125364, 127162, 146258, 190743, 197482, 219387, 254324, 292516, 296223, 381486, 394964, 438774, 592446, 691187, 762972, 877548, 1184892, 1382374, 2073561, 2764748, 3060971, 4147122, 6121942, 8294244, 9182913, 12243884, 18365826, 21426797, 36731652, 42853594, 64280391, 85707188, 128560782, 257121564]

約数ペア:

[(1, 257121564), (2, 128560782), (3, 85707188), (4, 64280391), (6, 42853594), (7, 36731652), (12, 21426797), (14, 18365826), (21, 12243884), (28, 9182913), (31, 8294244), (42, 6121942), (62, 4147122), (84, 3060971), (93, 2764748), (124, 2073561), (186, 1382374), (217, 1184892), (293, 877548), (337, 762972), (372, 691187), (434, 592446), (586, 438774), (651, 394964), (674, 381486), (868, 296223), (879, 292516), (1011, 254324), (1172, 219387), (1302, 197482), (1348, 190743), (1758, 146258), (2022, 127162), (2051, 125364), (2359, 108996), (2604, 98741), (3516, 73129), (4044, 63581), (4102, 62682), (4718, 54498), (6153, 41788), (7077, 36332), (8204, 31341), (9083, 28308), (9436, 27249), (10447, 24612), (12306, 20894), (14154, 18166)]