640336344

素因数分解:

$2^3\times 3^1\times {\mathrm{26680681}}^1$

素因数の和:26680690

約数の個数: 16

約数和(自身を含む): 1600840920

約数和(自身を除く): 960504576

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 26680681, 53361362, 80042043, 106722724, 160084086, 213445448, 320168172, 640336344]

約数ペア:

[(1, 640336344), (2, 320168172), (3, 213445448), (4, 160084086), (6, 106722724), (8, 80042043), (12, 53361362), (24, 26680681)]