157942780

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{40087}}^1$

素因数の和:40293

約数の個数: 24

約数和(自身を含む): 333371808

約数和(自身を除く): 175429028

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 40087, 80174, 160348, 200435, 400870, 801740, 7897139, 15794278, 31588556, 39485695, 78971390, 157942780]

約数ペア:

[(1, 157942780), (2, 78971390), (4, 39485695), (5, 31588556), (10, 15794278), (20, 7897139), (197, 801740), (394, 400870), (788, 200435), (985, 160348), (1970, 80174), (3940, 40087)]