1245395380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{859}}^1\times {\mathrm{1021}}^1$

素因数の和:1960

約数の個数: 48

約数和(自身を含む): 2657854080

約数和(自身を除く): 1412458700

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 859, 1021, 1420, 1718, 2042, 3436, 4084, 4295, 5105, 8590, 10210, 17180, 20420, 60989, 72491, 121978, 144982, 243956, 289964, 304945, 362455, 609890, 724910, 877039, 1219780, 1449820, 1754078, 3508156, 4385195, 8770390, 17540780, 62269769, 124539538, 249079076, 311348845, 622697690, 1245395380]

約数ペア:

[(1, 1245395380), (2, 622697690), (4, 311348845), (5, 249079076), (10, 124539538), (20, 62269769), (71, 17540780), (142, 8770390), (284, 4385195), (355, 3508156), (710, 1754078), (859, 1449820), (1021, 1219780), (1420, 877039), (1718, 724910), (2042, 609890), (3436, 362455), (4084, 304945), (4295, 289964), (5105, 243956), (8590, 144982), (10210, 121978), (17180, 72491), (20420, 60989)]