251019520

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2927}}^1$

素因数の和:3015

約数の個数: 72

約数和(自身を含む): 610452864

約数和(自身を除く): 359433344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 2144, 2680, 2927, 4288, 5360, 5854, 8576, 10720, 11708, 14635, 17152, 21440, 23416, 29270, 42880, 46832, 58540, 85760, 93664, 117080, 187328, 196109, 234160, 374656, 392218, 468320, 749312, 784436, 936640, 980545, 1568872, 1873280, 1961090, 3137744, 3746560, 3922180, 6275488, 7844360, 12550976, 15688720, 25101952, 31377440, 50203904, 62754880, 125509760, 251019520]

約数ペア:

[(1, 251019520), (2, 125509760), (4, 62754880), (5, 50203904), (8, 31377440), (10, 25101952), (16, 15688720), (20, 12550976), (32, 7844360), (40, 6275488), (64, 3922180), (67, 3746560), (80, 3137744), (128, 1961090), (134, 1873280), (160, 1568872), (256, 980545), (268, 936640), (320, 784436), (335, 749312), (536, 468320), (640, 392218), (670, 374656), (1072, 234160), (1280, 196109), (1340, 187328), (2144, 117080), (2680, 93664), (2927, 85760), (4288, 58540), (5360, 46832), (5854, 42880), (8576, 29270), (10720, 23416), (11708, 21440), (14635, 17152)]