131523280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{234863}}^1$

素因数の和:234883

約数の個数: 40

約数和(自身を含む): 349477632

約数和(自身を除く): 217954352

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 234863, 469726, 939452, 1174315, 1644041, 1878904, 2348630, 3288082, 3757808, 4697260, 6576164, 8220205, 9394520, 13152328, 16440410, 18789040, 26304656, 32880820, 65761640, 131523280]

約数ペア:

[(1, 131523280), (2, 65761640), (4, 32880820), (5, 26304656), (7, 18789040), (8, 16440410), (10, 13152328), (14, 9394520), (16, 8220205), (20, 6576164), (28, 4697260), (35, 3757808), (40, 3288082), (56, 2348630), (70, 1878904), (80, 1644041), (112, 1174315), (140, 939452), (280, 469726), (560, 234863)]