312131456

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:372

約数の個数: 128

約数和(自身を含む): 775004160

約数和(自身を除く): 462872704

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 127, 128, 182, 208, 211, 224, 254, 364, 416, 422, 448, 508, 728, 832, 844, 889, 896, 1016, 1456, 1477, 1651, 1664, 1688, 1778, 2032, 2743, 2912, 2954, 3302, 3376, 3556, 4064, 5486, 5824, 5908, 6604, 6752, 7112, 8128, 10972, 11557, 11648, 11816, 13208, 13504, 14224, 16256, 19201, 21944, 23114, 23632, 26416, 26797, 27008, 28448, 38402, 43888, 46228, 47264, 52832, 53594, 56896, 76804, 87776, 92456, 94528, 105664, 107188, 113792, 153608, 175552, 184912, 187579, 189056, 211328, 214376, 307216, 348361, 351104, 369824, 375158, 428752, 614432, 696722, 739648, 750316, 857504, 1228864, 1393444, 1479296, 1500632, 1715008, 2438527, 2457728, 2786888, 3001264, 3430016, 4877054, 5573776, 6002528, 9754108, 11147552, 12005056, 19508216, 22295104, 24010112, 39016432, 44590208, 78032864, 156065728, 312131456]

約数ペア:

[(1, 312131456), (2, 156065728), (4, 78032864), (7, 44590208), (8, 39016432), (13, 24010112), (14, 22295104), (16, 19508216), (26, 12005056), (28, 11147552), (32, 9754108), (52, 6002528), (56, 5573776), (64, 4877054), (91, 3430016), (104, 3001264), (112, 2786888), (127, 2457728), (128, 2438527), (182, 1715008), (208, 1500632), (211, 1479296), (224, 1393444), (254, 1228864), (364, 857504), (416, 750316), (422, 739648), (448, 696722), (508, 614432), (728, 428752), (832, 375158), (844, 369824), (889, 351104), (896, 348361), (1016, 307216), (1456, 214376), (1477, 211328), (1651, 189056), (1664, 187579), (1688, 184912), (1778, 175552), (2032, 153608), (2743, 113792), (2912, 107188), (2954, 105664), (3302, 94528), (3376, 92456), (3556, 87776), (4064, 76804), (5486, 56896), (5824, 53594), (5908, 52832), (6604, 47264), (6752, 46228), (7112, 43888), (8128, 38402), (10972, 28448), (11557, 27008), (11648, 26797), (11816, 26416), (13208, 23632), (13504, 23114), (14224, 21944), (16256, 19201)]