1387661028

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{389}}^1\times {\mathrm{1759}}^1$

素因数の和:2181

約数の個数: 72

約数和(自身を含む): 3517113600

約数和(自身を除く): 2129452572

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 389, 507, 676, 778, 1014, 1167, 1556, 1759, 2028, 2334, 3518, 4668, 5057, 5277, 7036, 10114, 10554, 15171, 20228, 21108, 22867, 30342, 45734, 60684, 65741, 68601, 91468, 131482, 137202, 197223, 262964, 274404, 297271, 394446, 594542, 684251, 788892, 891813, 1189084, 1368502, 1783626, 2052753, 2737004, 3567252, 4105506, 8211012, 8895263, 17790526, 26685789, 35581052, 53371578, 106743156, 115638419, 231276838, 346915257, 462553676, 693830514, 1387661028]

約数ペア:

[(1, 1387661028), (2, 693830514), (3, 462553676), (4, 346915257), (6, 231276838), (12, 115638419), (13, 106743156), (26, 53371578), (39, 35581052), (52, 26685789), (78, 17790526), (156, 8895263), (169, 8211012), (338, 4105506), (389, 3567252), (507, 2737004), (676, 2052753), (778, 1783626), (1014, 1368502), (1167, 1189084), (1556, 891813), (1759, 788892), (2028, 684251), (2334, 594542), (3518, 394446), (4668, 297271), (5057, 274404), (5277, 262964), (7036, 197223), (10114, 137202), (10554, 131482), (15171, 91468), (20228, 68601), (21108, 65741), (22867, 60684), (30342, 45734)]