28363790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:537

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 35503090

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 71, 91, 130, 142, 182, 355, 439, 455, 497, 710, 878, 910, 923, 994, 1846, 2195, 2485, 3073, 4390, 4615, 4970, 5707, 6146, 6461, 9230, 11414, 12922, 15365, 28535, 30730, 31169, 32305, 39949, 57070, 62338, 64610, 79898, 155845, 199745, 218183, 311690, 399490, 405197, 436366, 810394, 1090915, 2025985, 2181830, 2836379, 4051970, 5672758, 14181895, 28363790]

約数ペア:

[(1, 28363790), (2, 14181895), (5, 5672758), (7, 4051970), (10, 2836379), (13, 2181830), (14, 2025985), (26, 1090915), (35, 810394), (65, 436366), (70, 405197), (71, 399490), (91, 311690), (130, 218183), (142, 199745), (182, 155845), (355, 79898), (439, 64610), (455, 62338), (497, 57070), (710, 39949), (878, 32305), (910, 31169), (923, 30730), (994, 28535), (1846, 15365), (2195, 12922), (2485, 11414), (3073, 9230), (4390, 6461), (4615, 6146), (4970, 5707)]