28898080

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1657}}^1$

素因数の和:1781

約数の個数: 48

約数和(自身を含む): 68939640

約数和(自身を除く): 40041560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1657, 1744, 2180, 3314, 3488, 4360, 6628, 8285, 8720, 13256, 16570, 17440, 26512, 33140, 53024, 66280, 132560, 180613, 265120, 361226, 722452, 903065, 1444904, 1806130, 2889808, 3612260, 5779616, 7224520, 14449040, 28898080]

約数ペア:

[(1, 28898080), (2, 14449040), (4, 7224520), (5, 5779616), (8, 3612260), (10, 2889808), (16, 1806130), (20, 1444904), (32, 903065), (40, 722452), (80, 361226), (109, 265120), (160, 180613), (218, 132560), (436, 66280), (545, 53024), (872, 33140), (1090, 26512), (1657, 17440), (1744, 16570), (2180, 13256), (3314, 8720), (3488, 8285), (4360, 6628)]