1219881460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1244777}}^1$

素因数の和:1244800

約数の個数: 36

約数和(自身を含む): 2979998532

約数和(自身を除く): 1760117072

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1244777, 2489554, 4979108, 6223885, 8713439, 12447770, 17426878, 24895540, 34853756, 43567195, 60994073, 87134390, 121988146, 174268780, 243976292, 304970365, 609940730, 1219881460]

約数ペア:

[(1, 1219881460), (2, 609940730), (4, 304970365), (5, 243976292), (7, 174268780), (10, 121988146), (14, 87134390), (20, 60994073), (28, 43567195), (35, 34853756), (49, 24895540), (70, 17426878), (98, 12447770), (140, 8713439), (196, 6223885), (245, 4979108), (490, 2489554), (980, 1244777)]