79406020

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{9901}}^1$

素因数の和:10311

約数の個数: 24

約数和(自身を含む): 167185368

約数和(自身を除く): 87779348

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 9901, 19802, 39604, 49505, 99010, 198020, 3970301, 7940602, 15881204, 19851505, 39703010, 79406020]

約数ペア:

[(1, 79406020), (2, 39703010), (4, 19851505), (5, 15881204), (10, 7940602), (20, 3970301), (401, 198020), (802, 99010), (1604, 49505), (2005, 39604), (4010, 19802), (8020, 9901)]