20710140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31379}}^1$

素因数の和:31402

約数の個数: 48

約数和(自身を含む): 63262080

約数和(自身を除く): 42551940

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31379, 62758, 94137, 125516, 156895, 188274, 313790, 345169, 376548, 470685, 627580, 690338, 941370, 1035507, 1380676, 1725845, 1882740, 2071014, 3451690, 4142028, 5177535, 6903380, 10355070, 20710140]

約数ペア:

[(1, 20710140), (2, 10355070), (3, 6903380), (4, 5177535), (5, 4142028), (6, 3451690), (10, 2071014), (11, 1882740), (12, 1725845), (15, 1380676), (20, 1035507), (22, 941370), (30, 690338), (33, 627580), (44, 470685), (55, 376548), (60, 345169), (66, 313790), (110, 188274), (132, 156895), (165, 125516), (220, 94137), (330, 62758), (660, 31379)]