256579312

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:159

約数の個数: 120

約数和(自身を含む): 589556016

約数和(自身を除く): 332976704

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 37, 41, 44, 62, 74, 82, 88, 124, 148, 164, 176, 248, 296, 328, 341, 407, 451, 496, 592, 656, 682, 814, 902, 961, 1147, 1271, 1364, 1517, 1628, 1804, 1922, 2294, 2542, 2728, 3034, 3256, 3608, 3844, 4588, 5084, 5456, 6068, 6512, 7216, 7688, 9176, 10168, 10571, 12136, 12617, 13981, 15376, 16687, 18352, 20336, 21142, 24272, 25234, 27962, 33374, 35557, 39401, 42284, 47027, 50468, 55924, 66748, 71114, 78802, 84568, 94054, 100936, 111848, 133496, 142228, 157604, 169136, 188108, 201872, 223696, 266992, 284456, 315208, 376216, 391127, 433411, 517297, 568912, 630416, 752432, 782254, 866822, 1034594, 1457837, 1564508, 1733644, 2069188, 2915674, 3129016, 3467288, 4138376, 5831348, 6258032, 6934576, 8276752, 11662696, 16036207, 23325392, 32072414, 64144828, 128289656, 256579312]

約数ペア:

[(1, 256579312), (2, 128289656), (4, 64144828), (8, 32072414), (11, 23325392), (16, 16036207), (22, 11662696), (31, 8276752), (37, 6934576), (41, 6258032), (44, 5831348), (62, 4138376), (74, 3467288), (82, 3129016), (88, 2915674), (124, 2069188), (148, 1733644), (164, 1564508), (176, 1457837), (248, 1034594), (296, 866822), (328, 782254), (341, 752432), (407, 630416), (451, 568912), (496, 517297), (592, 433411), (656, 391127), (682, 376216), (814, 315208), (902, 284456), (961, 266992), (1147, 223696), (1271, 201872), (1364, 188108), (1517, 169136), (1628, 157604), (1804, 142228), (1922, 133496), (2294, 111848), (2542, 100936), (2728, 94054), (3034, 84568), (3256, 78802), (3608, 71114), (3844, 66748), (4588, 55924), (5084, 50468), (5456, 47027), (6068, 42284), (6512, 39401), (7216, 35557), (7688, 33374), (9176, 27962), (10168, 25234), (10571, 24272), (12136, 21142), (12617, 20336), (13981, 18352), (15376, 16687)]