20102920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21851}}^1$

素因数の和:21885

約数の個数: 32

約数和(自身を含む): 47200320

約数和(自身を除く): 27097400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21851, 43702, 87404, 109255, 174808, 218510, 437020, 502573, 874040, 1005146, 2010292, 2512865, 4020584, 5025730, 10051460, 20102920]

約数ペア:

[(1, 20102920), (2, 10051460), (4, 5025730), (5, 4020584), (8, 2512865), (10, 2010292), (20, 1005146), (23, 874040), (40, 502573), (46, 437020), (92, 218510), (115, 174808), (184, 109255), (230, 87404), (460, 43702), (920, 21851)]