81251135

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{1381}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 114296928

約数和(自身を除く): 33045793

約数列:

[1, 5, 7, 35, 41, 205, 287, 1381, 1435, 1681, 6905, 8405, 9667, 11767, 48335, 56621, 58835, 283105, 396347, 1981735, 2321461, 11607305, 16250227, 81251135]

約数ペア:

[(1, 81251135), (5, 16250227), (7, 11607305), (35, 2321461), (41, 1981735), (205, 396347), (287, 283105), (1381, 58835), (1435, 56621), (1681, 48335), (6905, 11767), (8405, 9667)]