80171680

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4597}}^1$

素因数の和:4721

約数の個数: 48

約数和(自身を含む): 191184840

約数和(自身を除く): 111013160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 4597, 8720, 9194, 17440, 18388, 22985, 36776, 45970, 73552, 91940, 147104, 183880, 367760, 501073, 735520, 1002146, 2004292, 2505365, 4008584, 5010730, 8017168, 10021460, 16034336, 20042920, 40085840, 80171680]

約数ペア:

[(1, 80171680), (2, 40085840), (4, 20042920), (5, 16034336), (8, 10021460), (10, 8017168), (16, 5010730), (20, 4008584), (32, 2505365), (40, 2004292), (80, 1002146), (109, 735520), (160, 501073), (218, 367760), (436, 183880), (545, 147104), (872, 91940), (1090, 73552), (1744, 45970), (2180, 36776), (3488, 22985), (4360, 18388), (4597, 17440), (8720, 9194)]