2738080

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:281

約数の個数: 48

約数和(自身を含む): 6569640

約数和(自身を除く): 3831560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 157, 160, 218, 314, 436, 545, 628, 785, 872, 1090, 1256, 1570, 1744, 2180, 2512, 3140, 3488, 4360, 5024, 6280, 8720, 12560, 17113, 17440, 25120, 34226, 68452, 85565, 136904, 171130, 273808, 342260, 547616, 684520, 1369040, 2738080]

約数ペア:

[(1, 2738080), (2, 1369040), (4, 684520), (5, 547616), (8, 342260), (10, 273808), (16, 171130), (20, 136904), (32, 85565), (40, 68452), (80, 34226), (109, 25120), (157, 17440), (160, 17113), (218, 12560), (314, 8720), (436, 6280), (545, 5024), (628, 4360), (785, 3488), (872, 3140), (1090, 2512), (1256, 2180), (1570, 1744)]