19660245872

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{190891}}^1$

素因数の和:191097

約数の個数: 40

約数和(自身を含む): 39269538672

約数和(自身を除く): 19609292800

約数列:

[1, 2, 4, 8, 16, 41, 82, 157, 164, 314, 328, 628, 656, 1256, 2512, 6437, 12874, 25748, 51496, 102992, 190891, 381782, 763564, 1527128, 3054256, 7826531, 15653062, 29969887, 31306124, 59939774, 62612248, 119879548, 125224496, 239759096, 479518192, 1228765367, 2457530734, 4915061468, 9830122936, 19660245872]

約数ペア:

[(1, 19660245872), (2, 9830122936), (4, 4915061468), (8, 2457530734), (16, 1228765367), (41, 479518192), (82, 239759096), (157, 125224496), (164, 119879548), (314, 62612248), (328, 59939774), (628, 31306124), (656, 29969887), (1256, 15653062), (2512, 7826531), (6437, 3054256), (12874, 1527128), (25748, 763564), (51496, 381782), (102992, 190891)]