256931472

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1451}}^1$

素因数の和:1517

約数の個数: 160

約数和(自身を含む): 829661184

約数和(自身を除く): 572729712

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 21, 24, 28, 31, 34, 42, 48, 51, 56, 62, 68, 84, 93, 102, 112, 119, 124, 136, 168, 186, 204, 217, 238, 248, 272, 336, 357, 372, 408, 434, 476, 496, 527, 651, 714, 744, 816, 868, 952, 1054, 1302, 1428, 1451, 1488, 1581, 1736, 1904, 2108, 2604, 2856, 2902, 3162, 3472, 3689, 4216, 4353, 5208, 5712, 5804, 6324, 7378, 8432, 8706, 10157, 10416, 11067, 11608, 12648, 14756, 17412, 20314, 22134, 23216, 24667, 25296, 29512, 30471, 34824, 40628, 44268, 44981, 49334, 59024, 60942, 69648, 74001, 81256, 88536, 89962, 98668, 121884, 134943, 148002, 162512, 172669, 177072, 179924, 197336, 243768, 269886, 296004, 314867, 345338, 359848, 394672, 487536, 518007, 539772, 592008, 629734, 690676, 719696, 764677, 944601, 1036014, 1079544, 1184016, 1259468, 1381352, 1529354, 1889202, 2072028, 2159088, 2294031, 2518936, 2762704, 3058708, 3778404, 4144056, 4588062, 5037872, 5352739, 6117416, 7556808, 8288112, 9176124, 10705478, 12234832, 15113616, 16058217, 18352248, 21410956, 32116434, 36704496, 42821912, 64232868, 85643824, 128465736, 256931472]

約数ペア:

[(1, 256931472), (2, 128465736), (3, 85643824), (4, 64232868), (6, 42821912), (7, 36704496), (8, 32116434), (12, 21410956), (14, 18352248), (16, 16058217), (17, 15113616), (21, 12234832), (24, 10705478), (28, 9176124), (31, 8288112), (34, 7556808), (42, 6117416), (48, 5352739), (51, 5037872), (56, 4588062), (62, 4144056), (68, 3778404), (84, 3058708), (93, 2762704), (102, 2518936), (112, 2294031), (119, 2159088), (124, 2072028), (136, 1889202), (168, 1529354), (186, 1381352), (204, 1259468), (217, 1184016), (238, 1079544), (248, 1036014), (272, 944601), (336, 764677), (357, 719696), (372, 690676), (408, 629734), (434, 592008), (476, 539772), (496, 518007), (527, 487536), (651, 394672), (714, 359848), (744, 345338), (816, 314867), (868, 296004), (952, 269886), (1054, 243768), (1302, 197336), (1428, 179924), (1451, 177072), (1488, 172669), (1581, 162512), (1736, 148002), (1904, 134943), (2108, 121884), (2604, 98668), (2856, 89962), (2902, 88536), (3162, 81256), (3472, 74001), (3689, 69648), (4216, 60942), (4353, 59024), (5208, 49334), (5712, 44981), (5804, 44268), (6324, 40628), (7378, 34824), (8432, 30471), (8706, 29512), (10157, 25296), (10416, 24667), (11067, 23216), (11608, 22134), (12648, 20314), (14756, 17412)]