665920424

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{206551}}^1$

素因数の和:206601

約数の個数: 32

約数和(自身を含む): 1388029440

約数和(自身を除く): 722109016

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 206551, 413102, 826204, 1652408, 2685163, 5370326, 6403081, 10740652, 12806162, 21481304, 25612324, 51224648, 83240053, 166480106, 332960212, 665920424]

約数ペア:

[(1, 665920424), (2, 332960212), (4, 166480106), (8, 83240053), (13, 51224648), (26, 25612324), (31, 21481304), (52, 12806162), (62, 10740652), (104, 6403081), (124, 5370326), (248, 2685163), (403, 1652408), (806, 826204), (1612, 413102), (3224, 206551)]