256653488

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10369}}^1$

素因数の和:10414

約数の個数: 80

約数和(自身を含む): 648083520

約数和(自身を除く): 391430032

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 34, 52, 56, 68, 91, 104, 112, 119, 136, 182, 208, 221, 238, 272, 364, 442, 476, 728, 884, 952, 1456, 1547, 1768, 1904, 3094, 3536, 6188, 10369, 12376, 20738, 24752, 41476, 72583, 82952, 134797, 145166, 165904, 176273, 269594, 290332, 352546, 539188, 580664, 705092, 943579, 1078376, 1161328, 1233911, 1410184, 1887158, 2156752, 2291549, 2467822, 2820368, 3774316, 4583098, 4935644, 7548632, 9166196, 9871288, 15097264, 16040843, 18332392, 19742576, 32081686, 36664784, 64163372, 128326744, 256653488]

約数ペア:

[(1, 256653488), (2, 128326744), (4, 64163372), (7, 36664784), (8, 32081686), (13, 19742576), (14, 18332392), (16, 16040843), (17, 15097264), (26, 9871288), (28, 9166196), (34, 7548632), (52, 4935644), (56, 4583098), (68, 3774316), (91, 2820368), (104, 2467822), (112, 2291549), (119, 2156752), (136, 1887158), (182, 1410184), (208, 1233911), (221, 1161328), (238, 1078376), (272, 943579), (364, 705092), (442, 580664), (476, 539188), (728, 352546), (884, 290332), (952, 269594), (1456, 176273), (1547, 165904), (1768, 145166), (1904, 134797), (3094, 82952), (3536, 72583), (6188, 41476), (10369, 24752), (12376, 20738)]