1330754840

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{305219}}^1$

素因数の和:305339

約数の個数: 32

約数和(自身を含む): 3021678000

約数和(自身を除く): 1690923160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 305219, 610438, 1220876, 1526095, 2441752, 3052190, 6104380, 12208760, 33268871, 66537742, 133075484, 166344355, 266150968, 332688710, 665377420, 1330754840]

約数ペア:

[(1, 1330754840), (2, 665377420), (4, 332688710), (5, 266150968), (8, 166344355), (10, 133075484), (20, 66537742), (40, 33268871), (109, 12208760), (218, 6104380), (436, 3052190), (545, 2441752), (872, 1526095), (1090, 1220876), (2180, 610438), (4360, 305219)]