2778230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 6386688

約数和(自身を除く): 3608458

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 43, 65, 70, 71, 86, 91, 130, 142, 182, 215, 301, 355, 430, 455, 497, 559, 602, 710, 910, 923, 994, 1118, 1505, 1846, 2485, 2795, 3010, 3053, 3913, 4615, 4970, 5590, 6106, 6461, 7826, 9230, 12922, 15265, 19565, 21371, 30530, 32305, 39130, 39689, 42742, 64610, 79378, 106855, 198445, 213710, 277823, 396890, 555646, 1389115, 2778230]

約数ペア:

[(1, 2778230), (2, 1389115), (5, 555646), (7, 396890), (10, 277823), (13, 213710), (14, 198445), (26, 106855), (35, 79378), (43, 64610), (65, 42742), (70, 39689), (71, 39130), (86, 32305), (91, 30530), (130, 21371), (142, 19565), (182, 15265), (215, 12922), (301, 9230), (355, 7826), (430, 6461), (455, 6106), (497, 5590), (559, 4970), (602, 4615), (710, 3913), (910, 3053), (923, 3010), (994, 2795), (1118, 2485), (1505, 1846)]