161078440

素因数分解:

$2^3\times 5^1\times {\mathrm{4026961}}^1$

素因数の和:4026972

約数の個数: 16

約数和(自身を含む): 362426580

約数和(自身を除く): 201348140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4026961, 8053922, 16107844, 20134805, 32215688, 40269610, 80539220, 161078440]

約数ペア:

[(1, 161078440), (2, 80539220), (4, 40269610), (5, 32215688), (8, 20134805), (10, 16107844), (20, 8053922), (40, 4026961)]