31897060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{9437}}^1$

素因数の和:9472

約数の個数: 36

約数和(自身を含む): 72540468

約数和(自身を除く): 40643408

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 9437, 18874, 37748, 47185, 94370, 122681, 188740, 245362, 490724, 613405, 1226810, 1594853, 2453620, 3189706, 6379412, 7974265, 15948530, 31897060]

約数ペア:

[(1, 31897060), (2, 15948530), (4, 7974265), (5, 6379412), (10, 3189706), (13, 2453620), (20, 1594853), (26, 1226810), (52, 613405), (65, 490724), (130, 245362), (169, 188740), (260, 122681), (338, 94370), (676, 47185), (845, 37748), (1690, 18874), (3380, 9437)]