81181238

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1\times {\mathrm{1213}}^1$

素因数の和:1631

約数の個数: 16

約数和(自身を含む): 123390960

約数和(自身を除く): 42209722

約数列:

[1, 2, 109, 218, 307, 614, 1213, 2426, 33463, 66926, 132217, 264434, 372391, 744782, 40590619, 81181238]

約数ペア:

[(1, 81181238), (2, 40590619), (109, 744782), (218, 372391), (307, 264434), (614, 132217), (1213, 66926), (2426, 33463)]