19651970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151169}}^1$

素因数の和:151189

約数の個数: 16

約数和(自身を含む): 38094840

約数和(自身を除く): 18442870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 151169, 302338, 755845, 1511690, 1965197, 3930394, 9825985, 19651970]

約数ペア:

[(1, 19651970), (2, 9825985), (5, 3930394), (10, 1965197), (13, 1511690), (26, 755845), (65, 302338), (130, 151169)]