257767328

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:215

約数の個数: 192

約数和(自身を含む): 682795008

約数和(自身を除く): 425027680

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 41, 52, 56, 68, 82, 91, 104, 112, 119, 127, 136, 164, 182, 208, 221, 224, 238, 254, 272, 287, 328, 364, 416, 442, 476, 508, 533, 544, 574, 656, 697, 728, 884, 889, 952, 1016, 1066, 1148, 1312, 1394, 1456, 1547, 1651, 1768, 1778, 1904, 2032, 2132, 2159, 2296, 2788, 2912, 3094, 3302, 3536, 3556, 3731, 3808, 4064, 4264, 4318, 4592, 4879, 5207, 5576, 6188, 6604, 7072, 7112, 7462, 8528, 8636, 9061, 9184, 9758, 10414, 11152, 11557, 12376, 13208, 14224, 14924, 15113, 17056, 17272, 18122, 19516, 20828, 22304, 23114, 24752, 26416, 28067, 28448, 29848, 30226, 34544, 36244, 36449, 39032, 41656, 46228, 49504, 52832, 56134, 59696, 60452, 63427, 67691, 69088, 72488, 72898, 78064, 83312, 88519, 92456, 112268, 119392, 120904, 126854, 135382, 144976, 145796, 156128, 166624, 177038, 184912, 196469, 224536, 241808, 253708, 270764, 289952, 291592, 354076, 369824, 392938, 449072, 473837, 483616, 507416, 541528, 583184, 619633, 708152, 785876, 898144, 947674, 1014832, 1083056, 1150747, 1166368, 1239266, 1416304, 1571752, 1895348, 2029664, 2166112, 2301494, 2478532, 2832608, 3143504, 3790696, 4602988, 4957064, 6287008, 7581392, 8055229, 9205976, 9914128, 15162784, 16110458, 18411952, 19828256, 32220916, 36823904, 64441832, 128883664, 257767328]

約数ペア:

[(1, 257767328), (2, 128883664), (4, 64441832), (7, 36823904), (8, 32220916), (13, 19828256), (14, 18411952), (16, 16110458), (17, 15162784), (26, 9914128), (28, 9205976), (32, 8055229), (34, 7581392), (41, 6287008), (52, 4957064), (56, 4602988), (68, 3790696), (82, 3143504), (91, 2832608), (104, 2478532), (112, 2301494), (119, 2166112), (127, 2029664), (136, 1895348), (164, 1571752), (182, 1416304), (208, 1239266), (221, 1166368), (224, 1150747), (238, 1083056), (254, 1014832), (272, 947674), (287, 898144), (328, 785876), (364, 708152), (416, 619633), (442, 583184), (476, 541528), (508, 507416), (533, 483616), (544, 473837), (574, 449072), (656, 392938), (697, 369824), (728, 354076), (884, 291592), (889, 289952), (952, 270764), (1016, 253708), (1066, 241808), (1148, 224536), (1312, 196469), (1394, 184912), (1456, 177038), (1547, 166624), (1651, 156128), (1768, 145796), (1778, 144976), (1904, 135382), (2032, 126854), (2132, 120904), (2159, 119392), (2296, 112268), (2788, 92456), (2912, 88519), (3094, 83312), (3302, 78064), (3536, 72898), (3556, 72488), (3731, 69088), (3808, 67691), (4064, 63427), (4264, 60452), (4318, 59696), (4592, 56134), (4879, 52832), (5207, 49504), (5576, 46228), (6188, 41656), (6604, 39032), (7072, 36449), (7112, 36244), (7462, 34544), (8528, 30226), (8636, 29848), (9061, 28448), (9184, 28067), (9758, 26416), (10414, 24752), (11152, 23114), (11557, 22304), (12376, 20828), (13208, 19516), (14224, 18122), (14924, 17272), (15113, 17056)]