20001182464

素因数分解:

$2^8\times {\mathrm{78129619}}^1$

素因数の和:78129635

約数の個数: 18

約数和(自身を含む): 39924235820

約数和(自身を除く): 19923053356

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78129619, 156259238, 312518476, 625036952, 1250073904, 2500147808, 5000295616, 10000591232, 20001182464]

約数ペア:

[(1, 20001182464), (2, 10000591232), (4, 5000295616), (8, 2500147808), (16, 1250073904), (32, 625036952), (64, 312518476), (128, 156259238), (256, 78129619)]