81568580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{177323}}^1$

素因数の和:177355

約数の個数: 24

約数和(自身を含む): 178742592

約数和(自身を除く): 97174012

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 177323, 354646, 709292, 886615, 1773230, 3546460, 4078429, 8156858, 16313716, 20392145, 40784290, 81568580]

約数ペア:

[(1, 81568580), (2, 40784290), (4, 20392145), (5, 16313716), (10, 8156858), (20, 4078429), (23, 3546460), (46, 1773230), (92, 886615), (115, 709292), (230, 354646), (460, 177323)]