81154554

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:431

約数の個数: 64

約数和(自身を含む): 181367424

約数和(自身を除く): 100212870

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 67, 78, 106, 134, 159, 201, 293, 318, 402, 586, 689, 871, 879, 1378, 1742, 1758, 2067, 2613, 3551, 3809, 4134, 5226, 7102, 7618, 10653, 11427, 15529, 19631, 21306, 22854, 31058, 39262, 46163, 46587, 58893, 92326, 93174, 117786, 138489, 201877, 255203, 276978, 403754, 510406, 605631, 765609, 1040443, 1211262, 1531218, 2080886, 3121329, 6242658, 13525759, 27051518, 40577277, 81154554]

約数ペア:

[(1, 81154554), (2, 40577277), (3, 27051518), (6, 13525759), (13, 6242658), (26, 3121329), (39, 2080886), (53, 1531218), (67, 1211262), (78, 1040443), (106, 765609), (134, 605631), (159, 510406), (201, 403754), (293, 276978), (318, 255203), (402, 201877), (586, 138489), (689, 117786), (871, 93174), (879, 92326), (1378, 58893), (1742, 46587), (1758, 46163), (2067, 39262), (2613, 31058), (3551, 22854), (3809, 21306), (4134, 19631), (5226, 15529), (7102, 11427), (7618, 10653)]