2071209890

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{256021}}^1$

素因数の和:256837

約数の個数: 16

約数和(自身を含む): 3732800760

約数和(自身を除く): 1661590870

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8090, 256021, 512042, 1280105, 2560210, 207120989, 414241978, 1035604945, 2071209890]

約数ペア:

[(1, 2071209890), (2, 1035604945), (5, 414241978), (10, 207120989), (809, 2560210), (1618, 1280105), (4045, 512042), (8090, 256021)]