81272776

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{1279}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 168652800

約数和(自身を除く): 87380024

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 169, 188, 338, 376, 611, 676, 1222, 1279, 1352, 2444, 2558, 4888, 5116, 7943, 10232, 15886, 16627, 31772, 33254, 60113, 63544, 66508, 120226, 133016, 216151, 240452, 432302, 480904, 781469, 864604, 1562938, 1729208, 3125876, 6251752, 10159097, 20318194, 40636388, 81272776]

約数ペア:

[(1, 81272776), (2, 40636388), (4, 20318194), (8, 10159097), (13, 6251752), (26, 3125876), (47, 1729208), (52, 1562938), (94, 864604), (104, 781469), (169, 480904), (188, 432302), (338, 240452), (376, 216151), (611, 133016), (676, 120226), (1222, 66508), (1279, 63544), (1352, 60113), (2444, 33254), (2558, 31772), (4888, 16627), (5116, 15886), (7943, 10232)]