20185948916

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{68863}}^1$

素因数の和:68941

約数の個数: 72

約数和(自身を含む): 44078469120

約数和(自身を除く): 23892520204

約数列:

[1, 2, 4, 7, 14, 19, 28, 29, 38, 58, 76, 116, 133, 203, 266, 361, 406, 532, 551, 722, 812, 1102, 1444, 2204, 2527, 3857, 5054, 7714, 10108, 10469, 15428, 20938, 41876, 68863, 73283, 137726, 146566, 275452, 293132, 482041, 964082, 1308397, 1928164, 1997027, 2616794, 3994054, 5233588, 7988108, 9158779, 13979189, 18317558, 24859543, 27958378, 36635116, 37943513, 49719086, 55916756, 75887026, 99438172, 151774052, 174016801, 265604591, 348033602, 531209182, 696067204, 720926747, 1062418364, 1441853494, 2883706988, 5046487229, 10092974458, 20185948916]

約数ペア:

[(1, 20185948916), (2, 10092974458), (4, 5046487229), (7, 2883706988), (14, 1441853494), (19, 1062418364), (28, 720926747), (29, 696067204), (38, 531209182), (58, 348033602), (76, 265604591), (116, 174016801), (133, 151774052), (203, 99438172), (266, 75887026), (361, 55916756), (406, 49719086), (532, 37943513), (551, 36635116), (722, 27958378), (812, 24859543), (1102, 18317558), (1444, 13979189), (2204, 9158779), (2527, 7988108), (3857, 5233588), (5054, 3994054), (7714, 2616794), (10108, 1997027), (10469, 1928164), (15428, 1308397), (20938, 964082), (41876, 482041), (68863, 293132), (73283, 275452), (137726, 146566)]