81004105

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{877}}^1$

素因数の和:938

約数の個数: 48

約数和(自身を含む): 126115920

約数和(自身を除く): 45111815

約数列:

[1, 5, 7, 13, 29, 35, 49, 65, 91, 145, 203, 245, 377, 455, 637, 877, 1015, 1421, 1885, 2639, 3185, 4385, 6139, 7105, 11401, 13195, 18473, 25433, 30695, 42973, 57005, 79807, 92365, 127165, 178031, 214865, 330629, 399035, 558649, 890155, 1246217, 1653145, 2314403, 2793245, 6231085, 11572015, 16200821, 81004105]

約数ペア:

[(1, 81004105), (5, 16200821), (7, 11572015), (13, 6231085), (29, 2793245), (35, 2314403), (49, 1653145), (65, 1246217), (91, 890155), (145, 558649), (203, 399035), (245, 330629), (377, 214865), (455, 178031), (637, 127165), (877, 92365), (1015, 79807), (1421, 57005), (1885, 42973), (2639, 30695), (3185, 25433), (4385, 18473), (6139, 13195), (7105, 11401)]