1649390656

素因数分解:

$2^6\times {\mathrm{127}}^1\times {\mathrm{307}}^1\times {\mathrm{661}}^1$

素因数の和:1107

約数の個数: 56

約数和(自身を含む): 3314533376

約数和(自身を除く): 1665142720

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 254, 307, 508, 614, 661, 1016, 1228, 1322, 2032, 2456, 2644, 4064, 4912, 5288, 8128, 9824, 10576, 19648, 21152, 38989, 42304, 77978, 83947, 155956, 167894, 202927, 311912, 335788, 405854, 623824, 671576, 811708, 1247648, 1343152, 1623416, 2495296, 2686304, 3246832, 5372608, 6493664, 12987328, 25771729, 51543458, 103086916, 206173832, 412347664, 824695328, 1649390656]

約数ペア:

[(1, 1649390656), (2, 824695328), (4, 412347664), (8, 206173832), (16, 103086916), (32, 51543458), (64, 25771729), (127, 12987328), (254, 6493664), (307, 5372608), (508, 3246832), (614, 2686304), (661, 2495296), (1016, 1623416), (1228, 1343152), (1322, 1247648), (2032, 811708), (2456, 671576), (2644, 623824), (4064, 405854), (4912, 335788), (5288, 311912), (8128, 202927), (9824, 167894), (10576, 155956), (19648, 83947), (21152, 77978), (38989, 42304)]