128768276

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{521}}^1$

素因数の和:649

約数の個数: 72

約数和(自身を含む): 285757416

約数和(自身を除く): 156989140

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 97, 98, 182, 194, 196, 364, 388, 521, 637, 679, 1042, 1261, 1274, 1358, 2084, 2522, 2548, 2716, 3647, 4753, 5044, 6773, 7294, 8827, 9506, 13546, 14588, 17654, 19012, 25529, 27092, 35308, 47411, 50537, 51058, 61789, 94822, 101074, 102116, 123578, 189644, 202148, 247156, 331877, 353759, 656981, 663754, 707518, 1313962, 1327508, 1415036, 2476313, 2627924, 4598867, 4952626, 9197734, 9905252, 18395468, 32192069, 64384138, 128768276]

約数ペア:

[(1, 128768276), (2, 64384138), (4, 32192069), (7, 18395468), (13, 9905252), (14, 9197734), (26, 4952626), (28, 4598867), (49, 2627924), (52, 2476313), (91, 1415036), (97, 1327508), (98, 1313962), (182, 707518), (194, 663754), (196, 656981), (364, 353759), (388, 331877), (521, 247156), (637, 202148), (679, 189644), (1042, 123578), (1261, 102116), (1274, 101074), (1358, 94822), (2084, 61789), (2522, 51058), (2548, 50537), (2716, 47411), (3647, 35308), (4753, 27092), (5044, 25529), (6773, 19012), (7294, 17654), (8827, 14588), (9506, 13546)]