18079120

素因数分解:

$2^4\times 5^1\times {\mathrm{225989}}^1$

素因数の和:226002

約数の個数: 20

約数和(自身を含む): 42034140

約数和(自身を除く): 23955020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225989, 451978, 903956, 1129945, 1807912, 2259890, 3615824, 4519780, 9039560, 18079120]

約数ペア:

[(1, 18079120), (2, 9039560), (4, 4519780), (5, 3615824), (8, 2259890), (10, 1807912), (16, 1129945), (20, 903956), (40, 451978), (80, 225989)]