290469080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{660157}}^1$

素因数の和:660179

約数の個数: 32

約数和(自身を含む): 712970640

約数和(自身を除く): 422501560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 660157, 1320314, 2640628, 3300785, 5281256, 6601570, 7261727, 13203140, 14523454, 26406280, 29046908, 36308635, 58093816, 72617270, 145234540, 290469080]

約数ペア:

[(1, 290469080), (2, 145234540), (4, 72617270), (5, 58093816), (8, 36308635), (10, 29046908), (11, 26406280), (20, 14523454), (22, 13203140), (40, 7261727), (44, 6601570), (55, 5281256), (88, 3300785), (110, 2640628), (220, 1320314), (440, 660157)]