20145209968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{96851971}}^1$

素因数の和:96851992

約数の個数: 20

約数和(自身を含む): 42033755848

約数和(自身を除く): 21888545880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 96851971, 193703942, 387407884, 774815768, 1259075623, 1549631536, 2518151246, 5036302492, 10072604984, 20145209968]

約数ペア:

[(1, 20145209968), (2, 10072604984), (4, 5036302492), (8, 2518151246), (13, 1549631536), (16, 1259075623), (26, 774815768), (52, 387407884), (104, 193703942), (208, 96851971)]