660940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4721}}^1$

素因数の和:4737

約数の個数: 24

約数和(自身を含む): 1586592

約数和(自身を除く): 925652

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4721, 9442, 18884, 23605, 33047, 47210, 66094, 94420, 132188, 165235, 330470, 660940]

約数ペア:

[(1, 660940), (2, 330470), (4, 165235), (5, 132188), (7, 94420), (10, 66094), (14, 47210), (20, 33047), (28, 23605), (35, 18884), (70, 9442), (140, 4721)]