278208112

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1753}}^1$

素因数の和:1890

約数の個数: 80

約数和(自身を含む): 669887680

約数和(自身を除く): 391679568

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 109, 112, 182, 208, 218, 364, 436, 728, 763, 872, 1417, 1456, 1526, 1744, 1753, 2834, 3052, 3506, 5668, 6104, 7012, 9919, 11336, 12208, 12271, 14024, 19838, 22672, 22789, 24542, 28048, 39676, 45578, 49084, 79352, 91156, 98168, 158704, 159523, 182312, 191077, 196336, 319046, 364624, 382154, 638092, 764308, 1276184, 1337539, 1528616, 2484001, 2552368, 2675078, 3057232, 4968002, 5350156, 9936004, 10700312, 17388007, 19872008, 21400624, 34776014, 39744016, 69552028, 139104056, 278208112]

約数ペア:

[(1, 278208112), (2, 139104056), (4, 69552028), (7, 39744016), (8, 34776014), (13, 21400624), (14, 19872008), (16, 17388007), (26, 10700312), (28, 9936004), (52, 5350156), (56, 4968002), (91, 3057232), (104, 2675078), (109, 2552368), (112, 2484001), (182, 1528616), (208, 1337539), (218, 1276184), (364, 764308), (436, 638092), (728, 382154), (763, 364624), (872, 319046), (1417, 196336), (1456, 191077), (1526, 182312), (1744, 159523), (1753, 158704), (2834, 98168), (3052, 91156), (3506, 79352), (5668, 49084), (6104, 45578), (7012, 39676), (9919, 28048), (11336, 24542), (12208, 22789), (12271, 22672), (14024, 19838)]