72895545

素因数分解:

$3^4\times 5^1\times {\mathrm{179989}}^1$

素因数の和:180006

約数の個数: 20

約数和(自身を含む): 130672740

約数和(自身を除く): 57777195

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 179989, 539967, 899945, 1619901, 2699835, 4859703, 8099505, 14579109, 24298515, 72895545]

約数ペア:

[(1, 72895545), (3, 24298515), (5, 14579109), (9, 8099505), (15, 4859703), (27, 2699835), (45, 1619901), (81, 899945), (135, 539967), (405, 179989)]