201747820

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{6421}}^1$

素因数の和:8001

約数の個数: 24

約数和(自身を含む): 424006128

約数和(自身を除く): 222258308

約数列:

[1, 2, 4, 5, 10, 20, 1571, 3142, 6284, 6421, 7855, 12842, 15710, 25684, 31420, 32105, 64210, 128420, 10087391, 20174782, 40349564, 50436955, 100873910, 201747820]

約数ペア:

[(1, 201747820), (2, 100873910), (4, 50436955), (5, 40349564), (10, 20174782), (20, 10087391), (1571, 128420), (3142, 64210), (6284, 32105), (6421, 31420), (7855, 25684), (12842, 15710)]