18318440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{65423}}^1$

素因数の和:65441

約数の個数: 32

約数和(自身を含む): 47105280

約数和(自身を除く): 28786840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 65423, 130846, 261692, 327115, 457961, 523384, 654230, 915922, 1308460, 1831844, 2289805, 2616920, 3663688, 4579610, 9159220, 18318440]

約数ペア:

[(1, 18318440), (2, 9159220), (4, 4579610), (5, 3663688), (7, 2616920), (8, 2289805), (10, 1831844), (14, 1308460), (20, 915922), (28, 654230), (35, 523384), (40, 457961), (56, 327115), (70, 261692), (140, 130846), (280, 65423)]