81400528

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{1459}}^1$

素因数の和:1795

約数の個数: 40

約数和(自身を含む): 172712160

約数和(自身を除く): 91311632

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 317, 634, 1268, 1459, 2536, 2918, 3487, 5072, 5836, 6974, 11672, 13948, 16049, 23344, 27896, 32098, 55792, 64196, 128392, 256784, 462503, 925006, 1850012, 3700024, 5087533, 7400048, 10175066, 20350132, 40700264, 81400528]

約数ペア:

[(1, 81400528), (2, 40700264), (4, 20350132), (8, 10175066), (11, 7400048), (16, 5087533), (22, 3700024), (44, 1850012), (88, 925006), (176, 462503), (317, 256784), (634, 128392), (1268, 64196), (1459, 55792), (2536, 32098), (2918, 27896), (3487, 23344), (5072, 16049), (5836, 13948), (6974, 11672)]