819256040

素因数分解:

$2^3\times 5^1\times {\mathrm{20481401}}^1$

素因数の和:20481412

約数の個数: 16

約数和(自身を含む): 1843326180

約数和(自身を除く): 1024070140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20481401, 40962802, 81925604, 102407005, 163851208, 204814010, 409628020, 819256040]

約数ペア:

[(1, 819256040), (2, 409628020), (4, 204814010), (5, 163851208), (8, 102407005), (10, 81925604), (20, 40962802), (40, 20481401)]