20149220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{11071}}^1$

素因数の和:11100

約数の個数: 48

約数和(自身を含む): 52082688

約数和(自身を除く): 31933468

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 11071, 22142, 44284, 55355, 77497, 110710, 143923, 154994, 221420, 287846, 309988, 387485, 575692, 719615, 774970, 1007461, 1439230, 1549940, 2014922, 2878460, 4029844, 5037305, 10074610, 20149220]

約数ペア:

[(1, 20149220), (2, 10074610), (4, 5037305), (5, 4029844), (7, 2878460), (10, 2014922), (13, 1549940), (14, 1439230), (20, 1007461), (26, 774970), (28, 719615), (35, 575692), (52, 387485), (65, 309988), (70, 287846), (91, 221420), (130, 154994), (140, 143923), (182, 110710), (260, 77497), (364, 55355), (455, 44284), (910, 22142), (1820, 11071)]