80815357

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{641}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 98364672

約数和(自身を除く): 17549315

約数列:

[1, 7, 31, 49, 83, 217, 581, 641, 1519, 2573, 4067, 4487, 18011, 19871, 31409, 53203, 126077, 139097, 372421, 973679, 1649293, 2606947, 11545051, 80815357]

約数ペア:

[(1, 80815357), (7, 11545051), (31, 2606947), (49, 1649293), (83, 973679), (217, 372421), (581, 139097), (641, 126077), (1519, 53203), (2573, 31409), (4067, 19871), (4487, 18011)]