128682820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{6911}}^1$

素因数の和:6953

約数の個数: 72

約数和(自身を含む): 330946560

約数和(自身を除く): 202263740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2660, 3724, 4655, 6911, 9310, 13822, 18620, 27644, 34555, 48377, 69110, 96754, 131309, 138220, 193508, 241885, 262618, 338639, 483770, 525236, 656545, 677278, 919163, 967540, 1313090, 1354556, 1693195, 1838326, 2626180, 3386390, 3676652, 4595815, 6434141, 6772780, 9191630, 12868282, 18383260, 25736564, 32170705, 64341410, 128682820]

約数ペア:

[(1, 128682820), (2, 64341410), (4, 32170705), (5, 25736564), (7, 18383260), (10, 12868282), (14, 9191630), (19, 6772780), (20, 6434141), (28, 4595815), (35, 3676652), (38, 3386390), (49, 2626180), (70, 1838326), (76, 1693195), (95, 1354556), (98, 1313090), (133, 967540), (140, 919163), (190, 677278), (196, 656545), (245, 525236), (266, 483770), (380, 338639), (490, 262618), (532, 241885), (665, 193508), (931, 138220), (980, 131309), (1330, 96754), (1862, 69110), (2660, 48377), (3724, 34555), (4655, 27644), (6911, 18620), (9310, 13822)]