255979520

素因数分解:

$2^{12}\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 104

約数和(自身を含む): 636932160

約数和(自身を除く): 380952640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 431, 464, 512, 580, 640, 862, 928, 1024, 1160, 1280, 1724, 1856, 2048, 2155, 2320, 2560, 3448, 3712, 4096, 4310, 4640, 5120, 6896, 7424, 8620, 9280, 10240, 12499, 13792, 14848, 17240, 18560, 20480, 24998, 27584, 29696, 34480, 37120, 49996, 55168, 59392, 62495, 68960, 74240, 99992, 110336, 118784, 124990, 137920, 148480, 199984, 220672, 249980, 275840, 296960, 399968, 441344, 499960, 551680, 593920, 799936, 882688, 999920, 1103360, 1599872, 1765376, 1999840, 2206720, 3199744, 3999680, 4413440, 6399488, 7999360, 8826880, 12798976, 15998720, 25597952, 31997440, 51195904, 63994880, 127989760, 255979520]

約数ペア:

[(1, 255979520), (2, 127989760), (4, 63994880), (5, 51195904), (8, 31997440), (10, 25597952), (16, 15998720), (20, 12798976), (29, 8826880), (32, 7999360), (40, 6399488), (58, 4413440), (64, 3999680), (80, 3199744), (116, 2206720), (128, 1999840), (145, 1765376), (160, 1599872), (232, 1103360), (256, 999920), (290, 882688), (320, 799936), (431, 593920), (464, 551680), (512, 499960), (580, 441344), (640, 399968), (862, 296960), (928, 275840), (1024, 249980), (1160, 220672), (1280, 199984), (1724, 148480), (1856, 137920), (2048, 124990), (2155, 118784), (2320, 110336), (2560, 99992), (3448, 74240), (3712, 68960), (4096, 62495), (4310, 59392), (4640, 55168), (5120, 49996), (6896, 37120), (7424, 34480), (8620, 29696), (9280, 27584), (10240, 24998), (12499, 20480), (13792, 18560), (14848, 17240)]