256788488

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{449}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 539784000

約数和(自身を除く): 282995512

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 97, 134, 194, 268, 388, 449, 536, 737, 776, 898, 1067, 1474, 1796, 2134, 2948, 3592, 4268, 4939, 5896, 6499, 8536, 9878, 12998, 19756, 25996, 30083, 39512, 43553, 51992, 60166, 71489, 87106, 120332, 142978, 174212, 240664, 285956, 330913, 348424, 479083, 571912, 661826, 958166, 1323652, 1916332, 2647304, 2918051, 3832664, 5836102, 11672204, 23344408, 32098561, 64197122, 128394244, 256788488]

約数ペア:

[(1, 256788488), (2, 128394244), (4, 64197122), (8, 32098561), (11, 23344408), (22, 11672204), (44, 5836102), (67, 3832664), (88, 2918051), (97, 2647304), (134, 1916332), (194, 1323652), (268, 958166), (388, 661826), (449, 571912), (536, 479083), (737, 348424), (776, 330913), (898, 285956), (1067, 240664), (1474, 174212), (1796, 142978), (2134, 120332), (2948, 87106), (3592, 71489), (4268, 60166), (4939, 51992), (5896, 43553), (6499, 39512), (8536, 30083), (9878, 25996), (12998, 19756)]