71343640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25121}}^1$

素因数の和:25203

約数の個数: 32

約数和(自身を含む): 162790560

約数和(自身を除く): 91446920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 25121, 50242, 100484, 125605, 200968, 251210, 502420, 1004840, 1783591, 3567182, 7134364, 8917955, 14268728, 17835910, 35671820, 71343640]

約数ペア:

[(1, 71343640), (2, 35671820), (4, 17835910), (5, 14268728), (8, 8917955), (10, 7134364), (20, 3567182), (40, 1783591), (71, 1004840), (142, 502420), (284, 251210), (355, 200968), (568, 125605), (710, 100484), (1420, 50242), (2840, 25121)]