81728312

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{307}}^1\times {\mathrm{311}}^1$

素因数の和:731

約数の個数: 32

約数和(自身を含む): 155675520

約数和(自身を除く): 73947208

約数列:

[1, 2, 4, 8, 107, 214, 307, 311, 428, 614, 622, 856, 1228, 1244, 2456, 2488, 32849, 33277, 65698, 66554, 95477, 131396, 133108, 190954, 262792, 266216, 381908, 763816, 10216039, 20432078, 40864156, 81728312]

約数ペア:

[(1, 81728312), (2, 40864156), (4, 20432078), (8, 10216039), (107, 763816), (214, 381908), (307, 266216), (311, 262792), (428, 190954), (614, 133108), (622, 131396), (856, 95477), (1228, 66554), (1244, 65698), (2456, 33277), (2488, 32849)]