19065680

素因数分解:

$2^4\times 5^1\times {\mathrm{238321}}^1$

素因数の和:238334

約数の個数: 20

約数和(自身を含む): 44327892

約数和(自身を除く): 25262212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 238321, 476642, 953284, 1191605, 1906568, 2383210, 3813136, 4766420, 9532840, 19065680]

約数ペア:

[(1, 19065680), (2, 9532840), (4, 4766420), (5, 3813136), (8, 2383210), (10, 1906568), (16, 1191605), (20, 953284), (40, 476642), (80, 238321)]