285505280

素因数分解:

$2^8\times 5^1\times {\mathrm{223051}}^1$

素因数の和:223072

約数の個数: 36

約数和(自身を含む): 683877432

約数和(自身を除く): 398372152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 223051, 446102, 892204, 1115255, 1784408, 2230510, 3568816, 4461020, 7137632, 8922040, 14275264, 17844080, 28550528, 35688160, 57101056, 71376320, 142752640, 285505280]

約数ペア:

[(1, 285505280), (2, 142752640), (4, 71376320), (5, 57101056), (8, 35688160), (10, 28550528), (16, 17844080), (20, 14275264), (32, 8922040), (40, 7137632), (64, 4461020), (80, 3568816), (128, 2230510), (160, 1784408), (256, 1115255), (320, 892204), (640, 446102), (1280, 223051)]