81936844

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 72

約数和(自身を含む): 167788544

約数和(自身を除く): 85851700

約数列:

[1, 2, 4, 11, 22, 31, 43, 44, 62, 86, 121, 124, 127, 172, 242, 254, 341, 473, 484, 508, 682, 946, 1333, 1364, 1397, 1892, 2666, 2794, 3751, 3937, 5203, 5332, 5461, 5588, 7502, 7874, 10406, 10922, 14663, 15004, 15367, 15748, 20812, 21844, 29326, 30734, 43307, 58652, 60071, 61468, 86614, 120142, 161293, 169291, 173228, 240284, 322586, 338582, 476377, 645172, 660781, 677164, 952754, 1321562, 1862201, 1905508, 2643124, 3724402, 7448804, 20484211, 40968422, 81936844]

約数ペア:

[(1, 81936844), (2, 40968422), (4, 20484211), (11, 7448804), (22, 3724402), (31, 2643124), (43, 1905508), (44, 1862201), (62, 1321562), (86, 952754), (121, 677164), (124, 660781), (127, 645172), (172, 476377), (242, 338582), (254, 322586), (341, 240284), (473, 173228), (484, 169291), (508, 161293), (682, 120142), (946, 86614), (1333, 61468), (1364, 60071), (1397, 58652), (1892, 43307), (2666, 30734), (2794, 29326), (3751, 21844), (3937, 20812), (5203, 15748), (5332, 15367), (5461, 15004), (5588, 14663), (7502, 10922), (7874, 10406)]