8465440

素因数分解:

$2^5\times 5^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 20186712

約数和(自身を除く): 11721272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 157, 160, 314, 337, 628, 674, 785, 1256, 1348, 1570, 1685, 2512, 2696, 3140, 3370, 5024, 5392, 6280, 6740, 10784, 12560, 13480, 25120, 26960, 52909, 53920, 105818, 211636, 264545, 423272, 529090, 846544, 1058180, 1693088, 2116360, 4232720, 8465440]

約数ペア:

[(1, 8465440), (2, 4232720), (4, 2116360), (5, 1693088), (8, 1058180), (10, 846544), (16, 529090), (20, 423272), (32, 264545), (40, 211636), (80, 105818), (157, 53920), (160, 52909), (314, 26960), (337, 25120), (628, 13480), (674, 12560), (785, 10784), (1256, 6740), (1348, 6280), (1570, 5392), (1685, 5024), (2512, 3370), (2696, 3140)]