20480442

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 46033920

約数和(自身を除く): 25553478

約数列:

[1, 2, 3, 6, 19, 23, 38, 46, 57, 69, 73, 107, 114, 138, 146, 214, 219, 321, 437, 438, 642, 874, 1311, 1387, 1679, 2033, 2461, 2622, 2774, 3358, 4066, 4161, 4922, 5037, 6099, 7383, 7811, 8322, 10074, 12198, 14766, 15622, 23433, 31901, 46759, 46866, 63802, 93518, 95703, 140277, 148409, 179653, 191406, 280554, 296818, 359306, 445227, 538959, 890454, 1077918, 3413407, 6826814, 10240221, 20480442]

約数ペア:

[(1, 20480442), (2, 10240221), (3, 6826814), (6, 3413407), (19, 1077918), (23, 890454), (38, 538959), (46, 445227), (57, 359306), (69, 296818), (73, 280554), (107, 191406), (114, 179653), (138, 148409), (146, 140277), (214, 95703), (219, 93518), (321, 63802), (437, 46866), (438, 46759), (642, 31901), (874, 23433), (1311, 15622), (1387, 14766), (1679, 12198), (2033, 10074), (2461, 8322), (2622, 7811), (2774, 7383), (3358, 6099), (4066, 5037), (4161, 4922)]