28160028

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{647}}^1$

素因数の和:704

約数の個数: 96

約数和(自身を含む): 81285120

約数和(自身を除く): 53125092

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 31, 36, 39, 52, 54, 62, 78, 93, 108, 117, 124, 156, 186, 234, 279, 351, 372, 403, 468, 558, 647, 702, 806, 837, 1116, 1209, 1294, 1404, 1612, 1674, 1941, 2418, 2588, 3348, 3627, 3882, 4836, 5823, 7254, 7764, 8411, 10881, 11646, 14508, 16822, 17469, 20057, 21762, 23292, 25233, 33644, 34938, 40114, 43524, 50466, 60171, 69876, 75699, 80228, 100932, 120342, 151398, 180513, 227097, 240684, 260741, 302796, 361026, 454194, 521482, 541539, 722052, 782223, 908388, 1042964, 1083078, 1564446, 2166156, 2346669, 3128892, 4693338, 7040007, 9386676, 14080014, 28160028]

約数ペア:

[(1, 28160028), (2, 14080014), (3, 9386676), (4, 7040007), (6, 4693338), (9, 3128892), (12, 2346669), (13, 2166156), (18, 1564446), (26, 1083078), (27, 1042964), (31, 908388), (36, 782223), (39, 722052), (52, 541539), (54, 521482), (62, 454194), (78, 361026), (93, 302796), (108, 260741), (117, 240684), (124, 227097), (156, 180513), (186, 151398), (234, 120342), (279, 100932), (351, 80228), (372, 75699), (403, 69876), (468, 60171), (558, 50466), (647, 43524), (702, 40114), (806, 34938), (837, 33644), (1116, 25233), (1209, 23292), (1294, 21762), (1404, 20057), (1612, 17469), (1674, 16822), (1941, 14508), (2418, 11646), (2588, 10881), (3348, 8411), (3627, 7764), (3882, 7254), (4836, 5823)]