279201280

素因数分解:

$2^9\times 5^1\times {\mathrm{109063}}^1$

素因数の和:109086

約数の個数: 40

約数和(自身を含む): 669434832

約数和(自身を除く): 390233552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 109063, 218126, 436252, 545315, 872504, 1090630, 1745008, 2181260, 3490016, 4362520, 6980032, 8725040, 13960064, 17450080, 27920128, 34900160, 55840256, 69800320, 139600640, 279201280]

約数ペア:

[(1, 279201280), (2, 139600640), (4, 69800320), (5, 55840256), (8, 34900160), (10, 27920128), (16, 17450080), (20, 13960064), (32, 8725040), (40, 6980032), (64, 4362520), (80, 3490016), (128, 2181260), (160, 1745008), (256, 1090630), (320, 872504), (512, 545315), (640, 436252), (1280, 218126), (2560, 109063)]