28145110

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{809}}^1$

素因数の和:901

約数の個数: 48

約数和(自身を含む): 59836320

約数和(自身を除く): 31691210

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 355, 490, 497, 710, 809, 994, 1618, 2485, 3479, 4045, 4970, 5663, 6958, 8090, 11326, 17395, 28315, 34790, 39641, 56630, 57439, 79282, 114878, 198205, 287195, 396410, 402073, 574390, 804146, 2010365, 2814511, 4020730, 5629022, 14072555, 28145110]

約数ペア:

[(1, 28145110), (2, 14072555), (5, 5629022), (7, 4020730), (10, 2814511), (14, 2010365), (35, 804146), (49, 574390), (70, 402073), (71, 396410), (98, 287195), (142, 198205), (245, 114878), (355, 79282), (490, 57439), (497, 56630), (710, 39641), (809, 34790), (994, 28315), (1618, 17395), (2485, 11326), (3479, 8090), (4045, 6958), (4970, 5663)]