20419890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{40039}}^1$

素因数の和:40066

約数の個数: 32

約数和(自身を含む): 51891840

約数和(自身を除く): 31471950

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 40039, 80078, 120117, 200195, 240234, 400390, 600585, 680663, 1201170, 1361326, 2041989, 3403315, 4083978, 6806630, 10209945, 20419890]

約数ペア:

[(1, 20419890), (2, 10209945), (3, 6806630), (5, 4083978), (6, 3403315), (10, 2041989), (15, 1361326), (17, 1201170), (30, 680663), (34, 600585), (51, 400390), (85, 240234), (102, 200195), (170, 120117), (255, 80078), (510, 40039)]