28728140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205201}}^1$

素因数の和:205217

約数の個数: 24

約数和(自身を含む): 68947872

約数和(自身を除く): 40219732

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205201, 410402, 820804, 1026005, 1436407, 2052010, 2872814, 4104020, 5745628, 7182035, 14364070, 28728140]

約数ペア:

[(1, 28728140), (2, 14364070), (4, 7182035), (5, 5745628), (7, 4104020), (10, 2872814), (14, 2052010), (20, 1436407), (28, 1026005), (35, 820804), (70, 410402), (140, 205201)]