638903808

素因数分解:

$2^9\times 3^3\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:549

約数の個数: 160

約数和(自身を含む): 1912600800

約数和(自身を除く): 1273696992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 113, 128, 144, 192, 216, 226, 256, 288, 339, 384, 409, 432, 452, 512, 576, 678, 768, 818, 864, 904, 1017, 1152, 1227, 1356, 1536, 1636, 1728, 1808, 2034, 2304, 2454, 2712, 3051, 3272, 3456, 3616, 3681, 4068, 4608, 4908, 5424, 6102, 6544, 6912, 7232, 7362, 8136, 9816, 10848, 11043, 12204, 13088, 13824, 14464, 14724, 16272, 19632, 21696, 22086, 24408, 26176, 28928, 29448, 32544, 39264, 43392, 44172, 46217, 48816, 52352, 57856, 58896, 65088, 78528, 86784, 88344, 92434, 97632, 104704, 117792, 130176, 138651, 157056, 173568, 176688, 184868, 195264, 209408, 235584, 260352, 277302, 314112, 353376, 369736, 390528, 415953, 471168, 520704, 554604, 628224, 706752, 739472, 781056, 831906, 942336, 1109208, 1247859, 1413504, 1478944, 1562112, 1663812, 1884672, 2218416, 2495718, 2827008, 2957888, 3327624, 4436832, 4991436, 5654016, 5915776, 6655248, 8873664, 9982872, 11831552, 13310496, 17747328, 19965744, 23663104, 26620992, 35494656, 39931488, 53241984, 70989312, 79862976, 106483968, 159725952, 212967936, 319451904, 638903808]

約数ペア:

[(1, 638903808), (2, 319451904), (3, 212967936), (4, 159725952), (6, 106483968), (8, 79862976), (9, 70989312), (12, 53241984), (16, 39931488), (18, 35494656), (24, 26620992), (27, 23663104), (32, 19965744), (36, 17747328), (48, 13310496), (54, 11831552), (64, 9982872), (72, 8873664), (96, 6655248), (108, 5915776), (113, 5654016), (128, 4991436), (144, 4436832), (192, 3327624), (216, 2957888), (226, 2827008), (256, 2495718), (288, 2218416), (339, 1884672), (384, 1663812), (409, 1562112), (432, 1478944), (452, 1413504), (512, 1247859), (576, 1109208), (678, 942336), (768, 831906), (818, 781056), (864, 739472), (904, 706752), (1017, 628224), (1152, 554604), (1227, 520704), (1356, 471168), (1536, 415953), (1636, 390528), (1728, 369736), (1808, 353376), (2034, 314112), (2304, 277302), (2454, 260352), (2712, 235584), (3051, 209408), (3272, 195264), (3456, 184868), (3616, 176688), (3681, 173568), (4068, 157056), (4608, 138651), (4908, 130176), (5424, 117792), (6102, 104704), (6544, 97632), (6912, 92434), (7232, 88344), (7362, 86784), (8136, 78528), (9816, 65088), (10848, 58896), (11043, 57856), (12204, 52352), (13088, 48816), (13824, 46217), (14464, 44172), (14724, 43392), (16272, 39264), (19632, 32544), (21696, 29448), (22086, 28928), (24408, 26176)]