20021320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45503}}^1$

素因数の和:45525

約数の個数: 32

約数和(自身を含む): 49144320

約数和(自身を除く): 29123000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45503, 91006, 182012, 227515, 364024, 455030, 500533, 910060, 1001066, 1820120, 2002132, 2502665, 4004264, 5005330, 10010660, 20021320]

約数ペア:

[(1, 20021320), (2, 10010660), (4, 5005330), (5, 4004264), (8, 2502665), (10, 2002132), (11, 1820120), (20, 1001066), (22, 910060), (40, 500533), (44, 455030), (55, 364024), (88, 227515), (110, 182012), (220, 91006), (440, 45503)]