19395220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74597}}^1$

素因数の和:74619

約数の個数: 24

約数和(自身を含む): 43863624

約数和(自身を除く): 24468404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74597, 149194, 298388, 372985, 745970, 969761, 1491940, 1939522, 3879044, 4848805, 9697610, 19395220]

約数ペア:

[(1, 19395220), (2, 9697610), (4, 4848805), (5, 3879044), (10, 1939522), (13, 1491940), (20, 969761), (26, 745970), (52, 372985), (65, 298388), (130, 149194), (260, 74597)]