80575340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{138923}}^1$

素因数の和:138961

約数の個数: 24

約数和(自身を含む): 175044240

約数和(自身を除く): 94468900

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 138923, 277846, 555692, 694615, 1389230, 2778460, 4028767, 8057534, 16115068, 20143835, 40287670, 80575340]

約数ペア:

[(1, 80575340), (2, 40287670), (4, 20143835), (5, 16115068), (10, 8057534), (20, 4028767), (29, 2778460), (58, 1389230), (116, 694615), (145, 555692), (290, 277846), (580, 138923)]