819520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:227

約数の個数: 56

約数和(自身を含む): 2112264

約数和(自身を除く): 1292744

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 197, 208, 260, 320, 394, 416, 520, 788, 832, 985, 1040, 1576, 1970, 2080, 2561, 3152, 3940, 4160, 5122, 6304, 7880, 10244, 12608, 12805, 15760, 20488, 25610, 31520, 40976, 51220, 63040, 81952, 102440, 163904, 204880, 409760, 819520]

約数ペア:

[(1, 819520), (2, 409760), (4, 204880), (5, 163904), (8, 102440), (10, 81952), (13, 63040), (16, 51220), (20, 40976), (26, 31520), (32, 25610), (40, 20488), (52, 15760), (64, 12805), (65, 12608), (80, 10244), (104, 7880), (130, 6304), (160, 5122), (197, 4160), (208, 3940), (260, 3152), (320, 2561), (394, 2080), (416, 1970), (520, 1576), (788, 1040), (832, 985)]