28027038

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:289

約数の個数: 64

約数和(自身を含む): 63608832

約数和(自身を除く): 35581794

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 67, 78, 93, 134, 173, 186, 201, 346, 402, 403, 519, 806, 871, 1038, 1209, 1742, 2077, 2249, 2418, 2613, 4154, 4498, 5226, 5363, 6231, 6747, 10726, 11591, 12462, 13494, 16089, 23182, 27001, 32178, 34773, 54002, 69546, 69719, 81003, 139438, 150683, 162006, 209157, 301366, 359321, 418314, 452049, 718642, 904098, 1077963, 2155926, 4671173, 9342346, 14013519, 28027038]

約数ペア:

[(1, 28027038), (2, 14013519), (3, 9342346), (6, 4671173), (13, 2155926), (26, 1077963), (31, 904098), (39, 718642), (62, 452049), (67, 418314), (78, 359321), (93, 301366), (134, 209157), (173, 162006), (186, 150683), (201, 139438), (346, 81003), (402, 69719), (403, 69546), (519, 54002), (806, 34773), (871, 32178), (1038, 27001), (1209, 23182), (1742, 16089), (2077, 13494), (2249, 12462), (2418, 11591), (2613, 10726), (4154, 6747), (4498, 6231), (5226, 5363)]