25676440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9041}}^1$

素因数の和:9123

約数の個数: 32

約数和(自身を含む): 58592160

約数和(自身を除く): 32915720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 9041, 18082, 36164, 45205, 72328, 90410, 180820, 361640, 641911, 1283822, 2567644, 3209555, 5135288, 6419110, 12838220, 25676440]

約数ペア:

[(1, 25676440), (2, 12838220), (4, 6419110), (5, 5135288), (8, 3209555), (10, 2567644), (20, 1283822), (40, 641911), (71, 361640), (142, 180820), (284, 90410), (355, 72328), (568, 45205), (710, 36164), (1420, 18082), (2840, 9041)]