28741840

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{811}}^1$

素因数の和:1267

約数の個数: 40

約数和(自身を含む): 67058208

約数和(自身を除く): 38316368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 811, 886, 1622, 1772, 2215, 3244, 3544, 4055, 4430, 6488, 7088, 8110, 8860, 12976, 16220, 17720, 32440, 35440, 64880, 359273, 718546, 1437092, 1796365, 2874184, 3592730, 5748368, 7185460, 14370920, 28741840]

約数ペア:

[(1, 28741840), (2, 14370920), (4, 7185460), (5, 5748368), (8, 3592730), (10, 2874184), (16, 1796365), (20, 1437092), (40, 718546), (80, 359273), (443, 64880), (811, 35440), (886, 32440), (1622, 17720), (1772, 16220), (2215, 12976), (3244, 8860), (3544, 8110), (4055, 7088), (4430, 6488)]