256421328

素因数分解:

$2^4\times 3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1123}}^1$

素因数の和:1272

約数の個数: 80

約数和(自身を含む): 682384896

約数和(自身を除く): 425963568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 67, 71, 134, 142, 201, 213, 268, 284, 402, 426, 536, 568, 804, 852, 1072, 1123, 1136, 1608, 1704, 2246, 3216, 3369, 3408, 4492, 4757, 6738, 8984, 9514, 13476, 14271, 17968, 19028, 26952, 28542, 38056, 53904, 57084, 75241, 76112, 79733, 114168, 150482, 159466, 225723, 228336, 239199, 300964, 318932, 451446, 478398, 601928, 637864, 902892, 956796, 1203856, 1275728, 1805784, 1913592, 3611568, 3827184, 5342111, 10684222, 16026333, 21368444, 32052666, 42736888, 64105332, 85473776, 128210664, 256421328]

約数ペア:

[(1, 256421328), (2, 128210664), (3, 85473776), (4, 64105332), (6, 42736888), (8, 32052666), (12, 21368444), (16, 16026333), (24, 10684222), (48, 5342111), (67, 3827184), (71, 3611568), (134, 1913592), (142, 1805784), (201, 1275728), (213, 1203856), (268, 956796), (284, 902892), (402, 637864), (426, 601928), (536, 478398), (568, 451446), (804, 318932), (852, 300964), (1072, 239199), (1123, 228336), (1136, 225723), (1608, 159466), (1704, 150482), (2246, 114168), (3216, 79733), (3369, 76112), (3408, 75241), (4492, 57084), (4757, 53904), (6738, 38056), (8984, 28542), (9514, 26952), (13476, 19028), (14271, 17968)]