65778880

素因数分解:

$2^6\times 5^1\times {\mathrm{205559}}^1$

素因数の和:205576

約数の個数: 28

約数和(自身を含む): 156636720

約数和(自身を除く): 90857840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 205559, 411118, 822236, 1027795, 1644472, 2055590, 3288944, 4111180, 6577888, 8222360, 13155776, 16444720, 32889440, 65778880]

約数ペア:

[(1, 65778880), (2, 32889440), (4, 16444720), (5, 13155776), (8, 8222360), (10, 6577888), (16, 4111180), (20, 3288944), (32, 2055590), (40, 1644472), (64, 1027795), (80, 822236), (160, 411118), (320, 205559)]