290469280

素因数分解:

$2^5\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1637}}^1$

素因数の和:2761

約数の個数: 48

約数和(自身を含む): 687272040

約数和(自身を除く): 396802760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1109, 1637, 2218, 3274, 4436, 5545, 6548, 8185, 8872, 11090, 13096, 16370, 17744, 22180, 26192, 32740, 35488, 44360, 52384, 65480, 88720, 130960, 177440, 261920, 1815433, 3630866, 7261732, 9077165, 14523464, 18154330, 29046928, 36308660, 58093856, 72617320, 145234640, 290469280]

約数ペア:

[(1, 290469280), (2, 145234640), (4, 72617320), (5, 58093856), (8, 36308660), (10, 29046928), (16, 18154330), (20, 14523464), (32, 9077165), (40, 7261732), (80, 3630866), (160, 1815433), (1109, 261920), (1637, 177440), (2218, 130960), (3274, 88720), (4436, 65480), (5545, 52384), (6548, 44360), (8185, 35488), (8872, 32740), (11090, 26192), (13096, 22180), (16370, 17744)]