28080668

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 96

約数和(自身を含む): 67350528

約数和(自身を除く): 39269860

約数列:

[1, 2, 4, 7, 11, 14, 17, 22, 28, 31, 34, 44, 62, 68, 77, 119, 124, 154, 173, 187, 217, 238, 308, 341, 346, 374, 434, 476, 527, 682, 692, 748, 868, 1054, 1211, 1309, 1364, 1903, 2108, 2387, 2422, 2618, 2941, 3689, 3806, 4774, 4844, 5236, 5363, 5797, 5882, 7378, 7612, 9548, 10726, 11594, 11764, 13321, 14756, 20587, 21452, 23188, 26642, 32351, 37541, 40579, 41174, 53284, 58993, 64702, 75082, 81158, 82348, 91171, 117986, 129404, 150164, 162316, 182342, 226457, 235972, 364684, 412951, 452914, 638197, 825902, 905828, 1002881, 1276394, 1651804, 2005762, 2552788, 4011524, 7020167, 14040334, 28080668]

約数ペア:

[(1, 28080668), (2, 14040334), (4, 7020167), (7, 4011524), (11, 2552788), (14, 2005762), (17, 1651804), (22, 1276394), (28, 1002881), (31, 905828), (34, 825902), (44, 638197), (62, 452914), (68, 412951), (77, 364684), (119, 235972), (124, 226457), (154, 182342), (173, 162316), (187, 150164), (217, 129404), (238, 117986), (308, 91171), (341, 82348), (346, 81158), (374, 75082), (434, 64702), (476, 58993), (527, 53284), (682, 41174), (692, 40579), (748, 37541), (868, 32351), (1054, 26642), (1211, 23188), (1309, 21452), (1364, 20587), (1903, 14756), (2108, 13321), (2387, 11764), (2422, 11594), (2618, 10726), (2941, 9548), (3689, 7612), (3806, 7378), (4774, 5882), (4844, 5797), (5236, 5363)]