20983360

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2851}}^1$

素因数の和:2891

約数の個数: 56

約数和(自身を含む): 52157376

約数和(自身を除く): 31174016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2851, 3680, 5702, 7360, 11404, 14255, 22808, 28510, 45616, 57020, 65573, 91232, 114040, 131146, 182464, 228080, 262292, 327865, 456160, 524584, 655730, 912320, 1049168, 1311460, 2098336, 2622920, 4196672, 5245840, 10491680, 20983360]

約数ペア:

[(1, 20983360), (2, 10491680), (4, 5245840), (5, 4196672), (8, 2622920), (10, 2098336), (16, 1311460), (20, 1049168), (23, 912320), (32, 655730), (40, 524584), (46, 456160), (64, 327865), (80, 262292), (92, 228080), (115, 182464), (160, 131146), (184, 114040), (230, 91232), (320, 65573), (368, 57020), (460, 45616), (736, 28510), (920, 22808), (1472, 14255), (1840, 11404), (2851, 7360), (3680, 5702)]