315393280

素因数分解:

$2^8\times 5^1\times {\mathrm{79}}^1\times {\mathrm{3119}}^1$

素因数の和:3219

約数の個数: 72

約数和(自身を含む): 765273600

約数和(自身を除く): 449880320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 632, 640, 790, 1264, 1280, 1580, 2528, 3119, 3160, 5056, 6238, 6320, 10112, 12476, 12640, 15595, 20224, 24952, 25280, 31190, 49904, 50560, 62380, 99808, 101120, 124760, 199616, 246401, 249520, 399232, 492802, 499040, 798464, 985604, 998080, 1232005, 1971208, 1996160, 2464010, 3942416, 3992320, 4928020, 7884832, 9856040, 15769664, 19712080, 31539328, 39424160, 63078656, 78848320, 157696640, 315393280]

約数ペア:

[(1, 315393280), (2, 157696640), (4, 78848320), (5, 63078656), (8, 39424160), (10, 31539328), (16, 19712080), (20, 15769664), (32, 9856040), (40, 7884832), (64, 4928020), (79, 3992320), (80, 3942416), (128, 2464010), (158, 1996160), (160, 1971208), (256, 1232005), (316, 998080), (320, 985604), (395, 798464), (632, 499040), (640, 492802), (790, 399232), (1264, 249520), (1280, 246401), (1580, 199616), (2528, 124760), (3119, 101120), (3160, 99808), (5056, 62380), (6238, 50560), (6320, 49904), (10112, 31190), (12476, 25280), (12640, 24952), (15595, 20224)]