256333792

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 144

約数和(自身を含む): 619799040

約数和(自身を除く): 363465248

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 32, 44, 52, 62, 88, 104, 124, 139, 143, 169, 176, 208, 248, 278, 286, 338, 341, 352, 403, 416, 496, 556, 572, 676, 682, 806, 992, 1112, 1144, 1352, 1364, 1529, 1612, 1807, 1859, 2224, 2288, 2704, 2728, 3058, 3224, 3614, 3718, 4309, 4433, 4448, 4576, 5239, 5408, 5456, 6116, 6448, 7228, 7436, 8618, 8866, 10478, 10912, 12232, 12896, 14456, 14872, 17236, 17732, 19877, 20956, 23491, 24464, 28912, 29744, 34472, 35464, 39754, 41912, 46982, 47399, 48928, 56017, 57629, 57824, 59488, 68944, 70928, 79508, 83824, 93964, 94798, 112034, 115258, 137888, 141856, 159016, 167648, 187928, 189596, 224068, 230516, 258401, 318032, 375856, 379192, 448136, 461032, 516802, 616187, 636064, 728221, 751712, 758384, 896272, 922064, 1033604, 1232374, 1456442, 1516768, 1792544, 1844128, 2067208, 2464748, 2912884, 4134416, 4929496, 5825768, 8010431, 8268832, 9858992, 11651536, 16020862, 19717984, 23303072, 32041724, 64083448, 128166896, 256333792]

約数ペア:

[(1, 256333792), (2, 128166896), (4, 64083448), (8, 32041724), (11, 23303072), (13, 19717984), (16, 16020862), (22, 11651536), (26, 9858992), (31, 8268832), (32, 8010431), (44, 5825768), (52, 4929496), (62, 4134416), (88, 2912884), (104, 2464748), (124, 2067208), (139, 1844128), (143, 1792544), (169, 1516768), (176, 1456442), (208, 1232374), (248, 1033604), (278, 922064), (286, 896272), (338, 758384), (341, 751712), (352, 728221), (403, 636064), (416, 616187), (496, 516802), (556, 461032), (572, 448136), (676, 379192), (682, 375856), (806, 318032), (992, 258401), (1112, 230516), (1144, 224068), (1352, 189596), (1364, 187928), (1529, 167648), (1612, 159016), (1807, 141856), (1859, 137888), (2224, 115258), (2288, 112034), (2704, 94798), (2728, 93964), (3058, 83824), (3224, 79508), (3614, 70928), (3718, 68944), (4309, 59488), (4433, 57824), (4448, 57629), (4576, 56017), (5239, 48928), (5408, 47399), (5456, 46982), (6116, 41912), (6448, 39754), (7228, 35464), (7436, 34472), (8618, 29744), (8866, 28912), (10478, 24464), (10912, 23491), (12232, 20956), (12896, 19877), (14456, 17732), (14872, 17236)]