20155178740

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{853}}^1\times {\mathrm{4597}}^1$

素因数の和:5716

約数の個数: 48

約数和(自身を含む): 42549634512

約数和(自身を除く): 22394455772

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 853, 1028, 1285, 1706, 2570, 3412, 4265, 4597, 5140, 8530, 9194, 17060, 18388, 22985, 45970, 91940, 219221, 438442, 876884, 1096105, 1181429, 2192210, 2362858, 3921241, 4384420, 4725716, 5907145, 7842482, 11814290, 15684964, 19606205, 23628580, 39212410, 78424820, 1007758937, 2015517874, 4031035748, 5038794685, 10077589370, 20155178740]

約数ペア:

[(1, 20155178740), (2, 10077589370), (4, 5038794685), (5, 4031035748), (10, 2015517874), (20, 1007758937), (257, 78424820), (514, 39212410), (853, 23628580), (1028, 19606205), (1285, 15684964), (1706, 11814290), (2570, 7842482), (3412, 5907145), (4265, 4725716), (4597, 4384420), (5140, 3921241), (8530, 2362858), (9194, 2192210), (17060, 1181429), (18388, 1096105), (22985, 876884), (45970, 438442), (91940, 219221)]