31293520

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{883}}^1$

素因数の和:1339

約数の個数: 40

約数和(自身を含む): 73004256

約数和(自身を除く): 41710736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 883, 886, 1766, 1772, 2215, 3532, 3544, 4415, 4430, 7064, 7088, 8830, 8860, 14128, 17660, 17720, 35320, 35440, 70640, 391169, 782338, 1564676, 1955845, 3129352, 3911690, 6258704, 7823380, 15646760, 31293520]

約数ペア:

[(1, 31293520), (2, 15646760), (4, 7823380), (5, 6258704), (8, 3911690), (10, 3129352), (16, 1955845), (20, 1564676), (40, 782338), (80, 391169), (443, 70640), (883, 35440), (886, 35320), (1766, 17720), (1772, 17660), (2215, 14128), (3532, 8860), (3544, 8830), (4415, 7088), (4430, 7064)]