20479070

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5107}}^1$

素因数の和:5515

約数の個数: 16

約数和(自身を含む): 36961488

約数和(自身を除く): 16482418

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5107, 10214, 25535, 51070, 2047907, 4095814, 10239535, 20479070]

約数ペア:

[(1, 20479070), (2, 10239535), (5, 4095814), (10, 2047907), (401, 51070), (802, 25535), (2005, 10214), (4010, 5107)]