18407515894

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{281}}^1\times {\mathrm{311}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 30660664320

約数和(自身を除く): 12253148426

約数列:

[1, 2, 19, 23, 38, 46, 241, 281, 311, 437, 482, 562, 622, 874, 4579, 5339, 5543, 5909, 6463, 7153, 9158, 10678, 11086, 11818, 12926, 14306, 67721, 74951, 87391, 105317, 122797, 135442, 135907, 149902, 174782, 210634, 245594, 271814, 1286699, 1424069, 1557583, 1660429, 1723873, 2009993, 2573398, 2848138, 3115166, 3320858, 3447746, 4019986, 21061231, 29594077, 32753587, 38189867, 42122462, 59188154, 65507174, 76379734, 400163389, 484408313, 800326778, 968816626, 9203757947, 18407515894]

約数ペア:

[(1, 18407515894), (2, 9203757947), (19, 968816626), (23, 800326778), (38, 484408313), (46, 400163389), (241, 76379734), (281, 65507174), (311, 59188154), (437, 42122462), (482, 38189867), (562, 32753587), (622, 29594077), (874, 21061231), (4579, 4019986), (5339, 3447746), (5543, 3320858), (5909, 3115166), (6463, 2848138), (7153, 2573398), (9158, 2009993), (10678, 1723873), (11086, 1660429), (11818, 1557583), (12926, 1424069), (14306, 1286699), (67721, 271814), (74951, 245594), (87391, 210634), (105317, 174782), (122797, 149902), (135442, 135907)]