219906440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{422897}}^1$

素因数の和:422921

約数の個数: 32

約数和(自身を含む): 532851480

約数和(自身を除く): 312945040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 422897, 845794, 1691588, 2114485, 3383176, 4228970, 5497661, 8457940, 10995322, 16915880, 21990644, 27488305, 43981288, 54976610, 109953220, 219906440]

約数ペア:

[(1, 219906440), (2, 109953220), (4, 54976610), (5, 43981288), (8, 27488305), (10, 21990644), (13, 16915880), (20, 10995322), (26, 8457940), (40, 5497661), (52, 4228970), (65, 3383176), (104, 2114485), (130, 1691588), (260, 845794), (520, 422897)]