18086380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5351}}^1$

素因数の和:5386

約数の個数: 36

約数和(自身を含む): 41135472

約数和(自身を除く): 23049092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5351, 10702, 21404, 26755, 53510, 69563, 107020, 139126, 278252, 347815, 695630, 904319, 1391260, 1808638, 3617276, 4521595, 9043190, 18086380]

約数ペア:

[(1, 18086380), (2, 9043190), (4, 4521595), (5, 3617276), (10, 1808638), (13, 1391260), (20, 904319), (26, 695630), (52, 347815), (65, 278252), (130, 139126), (169, 107020), (260, 69563), (338, 53510), (676, 26755), (845, 21404), (1690, 10702), (3380, 5351)]