20111840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17957}}^1$

素因数の和:17979

約数の個数: 48

約数和(自身を含む): 54304992

約数和(自身を除く): 34193152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17957, 35914, 71828, 89785, 125699, 143656, 179570, 251398, 287312, 359140, 502796, 574624, 628495, 718280, 1005592, 1256990, 1436560, 2011184, 2513980, 2873120, 4022368, 5027960, 10055920, 20111840]

約数ペア:

[(1, 20111840), (2, 10055920), (4, 5027960), (5, 4022368), (7, 2873120), (8, 2513980), (10, 2011184), (14, 1436560), (16, 1256990), (20, 1005592), (28, 718280), (32, 628495), (35, 574624), (40, 502796), (56, 359140), (70, 287312), (80, 251398), (112, 179570), (140, 143656), (160, 125699), (224, 89785), (280, 71828), (560, 35914), (1120, 17957)]