20181401765

素因数分解:

$5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1223}}^1\times {\mathrm{1231}}^1$

素因数の和:2849

約数の個数: 32

約数和(自身を含む): 27794866176

約数和(自身を除く): 7613464411

約数列:

[1, 5, 7, 35, 383, 1223, 1231, 1915, 2681, 6115, 6155, 8561, 8617, 13405, 42805, 43085, 468409, 471473, 1505513, 2342045, 2357365, 3278863, 3300311, 7527565, 10538591, 16394315, 16501555, 52692955, 576611479, 2883057395, 4036280353, 20181401765]

約数ペア:

[(1, 20181401765), (5, 4036280353), (7, 2883057395), (35, 576611479), (383, 52692955), (1223, 16501555), (1231, 16394315), (1915, 10538591), (2681, 7527565), (6115, 3300311), (6155, 3278863), (8561, 2357365), (8617, 2342045), (13405, 1505513), (42805, 471473), (43085, 468409)]