20163290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4057}}^1$

素因数の和:4142

約数の個数: 32

約数和(自身を含む): 42073344

約数和(自身を除く): 21910054

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4057, 4970, 8114, 20285, 28399, 40570, 56798, 141995, 283990, 288047, 576094, 1440235, 2016329, 2880470, 4032658, 10081645, 20163290]

約数ペア:

[(1, 20163290), (2, 10081645), (5, 4032658), (7, 2880470), (10, 2016329), (14, 1440235), (35, 576094), (70, 288047), (71, 283990), (142, 141995), (355, 56798), (497, 40570), (710, 28399), (994, 20285), (2485, 8114), (4057, 4970)]