20377528

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1601}}^1$

素因数の和:1687

約数の個数: 32

約数和(自身を含む): 40178160

約数和(自身を除く): 19800632

約数列:

[1, 2, 4, 8, 37, 43, 74, 86, 148, 172, 296, 344, 1591, 1601, 3182, 3202, 6364, 6404, 12728, 12808, 59237, 68843, 118474, 137686, 236948, 275372, 473896, 550744, 2547191, 5094382, 10188764, 20377528]

約数ペア:

[(1, 20377528), (2, 10188764), (4, 5094382), (8, 2547191), (37, 550744), (43, 473896), (74, 275372), (86, 236948), (148, 137686), (172, 118474), (296, 68843), (344, 59237), (1591, 12808), (1601, 12728), (3182, 6404), (3202, 6364)]