4020280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9137}}^1$

素因数の和:9159

約数の個数: 32

約数和(自身を含む): 9869040

約数和(自身を除く): 5848760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 9137, 18274, 36548, 45685, 73096, 91370, 100507, 182740, 201014, 365480, 402028, 502535, 804056, 1005070, 2010140, 4020280]

約数ペア:

[(1, 4020280), (2, 2010140), (4, 1005070), (5, 804056), (8, 502535), (10, 402028), (11, 365480), (20, 201014), (22, 182740), (40, 100507), (44, 91370), (55, 73096), (88, 45685), (110, 36548), (220, 18274), (440, 9137)]