257539072

素因数分解:

$2^{10}\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 176

約数和(自身を含む): 649799680

約数和(自身を除く): 392260608

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 56, 61, 62, 64, 76, 112, 122, 124, 128, 133, 152, 217, 224, 244, 248, 256, 266, 304, 427, 434, 448, 488, 496, 512, 532, 589, 608, 854, 868, 896, 976, 992, 1024, 1064, 1159, 1178, 1216, 1708, 1736, 1792, 1891, 1952, 1984, 2128, 2318, 2356, 2432, 3416, 3472, 3584, 3782, 3904, 3968, 4123, 4256, 4636, 4712, 4864, 6832, 6944, 7168, 7564, 7808, 7936, 8113, 8246, 8512, 9272, 9424, 9728, 13237, 13664, 13888, 15128, 15616, 15872, 16226, 16492, 17024, 18544, 18848, 19456, 26474, 27328, 27776, 30256, 31232, 31744, 32452, 32984, 34048, 35929, 37088, 37696, 52948, 54656, 55552, 60512, 62464, 64904, 65968, 68096, 71858, 74176, 75392, 105896, 109312, 111104, 121024, 129808, 131936, 136192, 143716, 148352, 150784, 211792, 218624, 222208, 242048, 251503, 259616, 263872, 287432, 296704, 301568, 423584, 437248, 484096, 503006, 519232, 527744, 574864, 593408, 603136, 847168, 968192, 1006012, 1038464, 1055488, 1149728, 1186816, 1694336, 1936384, 2012024, 2076928, 2110976, 2299456, 3388672, 4024048, 4153856, 4221952, 4598912, 6777344, 8048096, 8307712, 9197824, 13554688, 16096192, 18395648, 32192384, 36791296, 64384768, 128769536, 257539072]

約数ペア:

[(1, 257539072), (2, 128769536), (4, 64384768), (7, 36791296), (8, 32192384), (14, 18395648), (16, 16096192), (19, 13554688), (28, 9197824), (31, 8307712), (32, 8048096), (38, 6777344), (56, 4598912), (61, 4221952), (62, 4153856), (64, 4024048), (76, 3388672), (112, 2299456), (122, 2110976), (124, 2076928), (128, 2012024), (133, 1936384), (152, 1694336), (217, 1186816), (224, 1149728), (244, 1055488), (248, 1038464), (256, 1006012), (266, 968192), (304, 847168), (427, 603136), (434, 593408), (448, 574864), (488, 527744), (496, 519232), (512, 503006), (532, 484096), (589, 437248), (608, 423584), (854, 301568), (868, 296704), (896, 287432), (976, 263872), (992, 259616), (1024, 251503), (1064, 242048), (1159, 222208), (1178, 218624), (1216, 211792), (1708, 150784), (1736, 148352), (1792, 143716), (1891, 136192), (1952, 131936), (1984, 129808), (2128, 121024), (2318, 111104), (2356, 109312), (2432, 105896), (3416, 75392), (3472, 74176), (3584, 71858), (3782, 68096), (3904, 65968), (3968, 64904), (4123, 62464), (4256, 60512), (4636, 55552), (4712, 54656), (4864, 52948), (6832, 37696), (6944, 37088), (7168, 35929), (7564, 34048), (7808, 32984), (7936, 32452), (8113, 31744), (8246, 31232), (8512, 30256), (9272, 27776), (9424, 27328), (9728, 26474), (13237, 19456), (13664, 18848), (13888, 18544), (15128, 17024), (15616, 16492), (15872, 16226)]