79970020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307577}}^1$

素因数の和:307599

約数の個数: 24

約数和(自身を含む): 180855864

約数和(自身を除く): 100885844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 307577, 615154, 1230308, 1537885, 3075770, 3998501, 6151540, 7997002, 15994004, 19992505, 39985010, 79970020]

約数ペア:

[(1, 79970020), (2, 39985010), (4, 19992505), (5, 15994004), (10, 7997002), (13, 6151540), (20, 3998501), (26, 3075770), (52, 1537885), (65, 1230308), (130, 615154), (260, 307577)]