640268048

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{184409}}^1$

素因数の和:184455

約数の個数: 40

約数和(自身を含む): 1463477760

約数和(自身を除く): 823209712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 184409, 368818, 737636, 1290863, 1475272, 2581726, 2950544, 5163452, 5716679, 10326904, 11433358, 20653808, 22866716, 40016753, 45733432, 80033506, 91466864, 160067012, 320134024, 640268048]

約数ペア:

[(1, 640268048), (2, 320134024), (4, 160067012), (7, 91466864), (8, 80033506), (14, 45733432), (16, 40016753), (28, 22866716), (31, 20653808), (56, 11433358), (62, 10326904), (112, 5716679), (124, 5163452), (217, 2950544), (248, 2581726), (434, 1475272), (496, 1290863), (868, 737636), (1736, 368818), (3472, 184409)]