20252540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13151}}^1$

素因数の和:13178

約数の個数: 48

約数和(自身を含む): 53028864

約数和(自身を除く): 32776324

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13151, 26302, 52604, 65755, 92057, 131510, 144661, 184114, 263020, 289322, 368228, 460285, 578644, 723305, 920570, 1012627, 1446610, 1841140, 2025254, 2893220, 4050508, 5063135, 10126270, 20252540]

約数ペア:

[(1, 20252540), (2, 10126270), (4, 5063135), (5, 4050508), (7, 2893220), (10, 2025254), (11, 1841140), (14, 1446610), (20, 1012627), (22, 920570), (28, 723305), (35, 578644), (44, 460285), (55, 368228), (70, 289322), (77, 263020), (110, 184114), (140, 144661), (154, 131510), (220, 92057), (308, 65755), (385, 52604), (770, 26302), (1540, 13151)]