2899640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1103

約数の個数: 32

約数和(自身を含む): 6622560

約数和(自身を除く): 3722920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1021, 1420, 2042, 2840, 4084, 5105, 8168, 10210, 20420, 40840, 72491, 144982, 289964, 362455, 579928, 724910, 1449820, 2899640]

約数ペア:

[(1, 2899640), (2, 1449820), (4, 724910), (5, 579928), (8, 362455), (10, 289964), (20, 144982), (40, 72491), (71, 40840), (142, 20420), (284, 10210), (355, 8168), (568, 5105), (710, 4084), (1021, 2840), (1420, 2042)]