128957444

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2239}}^1$

素因数の和:2289

約数の個数: 72

約数和(自身を含む): 300303360

約数和(自身を除く): 171345916

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 34, 44, 68, 77, 119, 121, 154, 187, 238, 242, 308, 374, 476, 484, 748, 847, 1309, 1694, 2057, 2239, 2618, 3388, 4114, 4478, 5236, 8228, 8956, 14399, 15673, 24629, 28798, 31346, 38063, 49258, 57596, 62692, 76126, 98516, 152252, 172403, 266441, 270919, 344806, 418693, 532882, 541838, 689612, 837386, 1065764, 1083676, 1674772, 1896433, 2930851, 3792866, 4605623, 5861702, 7585732, 9211246, 11723404, 18422492, 32239361, 64478722, 128957444]

約数ペア:

[(1, 128957444), (2, 64478722), (4, 32239361), (7, 18422492), (11, 11723404), (14, 9211246), (17, 7585732), (22, 5861702), (28, 4605623), (34, 3792866), (44, 2930851), (68, 1896433), (77, 1674772), (119, 1083676), (121, 1065764), (154, 837386), (187, 689612), (238, 541838), (242, 532882), (308, 418693), (374, 344806), (476, 270919), (484, 266441), (748, 172403), (847, 152252), (1309, 98516), (1694, 76126), (2057, 62692), (2239, 57596), (2618, 49258), (3388, 38063), (4114, 31346), (4478, 28798), (5236, 24629), (8228, 15673), (8956, 14399)]