1449820

素因数分解:

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

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 3090528

約数和(自身を除く): 1640708

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1021, 1420, 2042, 4084, 5105, 10210, 20420, 72491, 144982, 289964, 362455, 724910, 1449820]

約数ペア:

[(1, 1449820), (2, 724910), (4, 362455), (5, 289964), (10, 144982), (20, 72491), (71, 20420), (142, 10210), (284, 5105), (355, 4084), (710, 2042), (1021, 1420)]