91412780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{2719}}^1$

素因数の和:2810

約数の個数: 36

約数和(自身を含む): 196835520

約数和(自身を除く): 105422740

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 2719, 3362, 5438, 6724, 8405, 10876, 13595, 16810, 27190, 33620, 54380, 111479, 222958, 445916, 557395, 1114790, 2229580, 4570639, 9141278, 18282556, 22853195, 45706390, 91412780]

約数ペア:

[(1, 91412780), (2, 45706390), (4, 22853195), (5, 18282556), (10, 9141278), (20, 4570639), (41, 2229580), (82, 1114790), (164, 557395), (205, 445916), (410, 222958), (820, 111479), (1681, 54380), (2719, 33620), (3362, 27190), (5438, 16810), (6724, 13595), (8405, 10876)]