28803880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102871}}^1$

素因数の和:102889

約数の個数: 32

約数和(自身を含む): 74067840

約数和(自身を除く): 45263960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102871, 205742, 411484, 514355, 720097, 822968, 1028710, 1440194, 2057420, 2880388, 3600485, 4114840, 5760776, 7200970, 14401940, 28803880]

約数ペア:

[(1, 28803880), (2, 14401940), (4, 7200970), (5, 5760776), (7, 4114840), (8, 3600485), (10, 2880388), (14, 2057420), (20, 1440194), (28, 1028710), (35, 822968), (40, 720097), (56, 514355), (70, 411484), (140, 205742), (280, 102871)]