663880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2371}}^1$

素因数の和:2389

約数の個数: 32

約数和(自身を含む): 1707840

約数和(自身を除く): 1043960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2371, 4742, 9484, 11855, 16597, 18968, 23710, 33194, 47420, 66388, 82985, 94840, 132776, 165970, 331940, 663880]

約数ペア:

[(1, 663880), (2, 331940), (4, 165970), (5, 132776), (7, 94840), (8, 82985), (10, 66388), (14, 47420), (20, 33194), (28, 23710), (35, 18968), (40, 16597), (56, 11855), (70, 9484), (140, 4742), (280, 2371)]