18937040

素因数分解:

$2^4\times 5^1\times {\mathrm{236713}}^1$

素因数の和:236726

約数の個数: 20

約数和(自身を含む): 44028804

約数和(自身を除く): 25091764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236713, 473426, 946852, 1183565, 1893704, 2367130, 3787408, 4734260, 9468520, 18937040]

約数ペア:

[(1, 18937040), (2, 9468520), (4, 4734260), (5, 3787408), (8, 2367130), (10, 1893704), (16, 1183565), (20, 946852), (40, 473426), (80, 236713)]