20168865584

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{14519}}^1$

素因数の和:14770

約数の個数: 80

約数和(自身を含む): 45516134400

約数和(自身を除く): 25347268816

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 157, 158, 314, 316, 553, 628, 632, 1099, 1106, 1256, 1264, 2198, 2212, 2512, 4396, 4424, 8792, 8848, 12403, 14519, 17584, 24806, 29038, 49612, 58076, 86821, 99224, 101633, 116152, 173642, 198448, 203266, 232304, 347284, 406532, 694568, 813064, 1147001, 1389136, 1626128, 2279483, 2294002, 4558966, 4588004, 8029007, 9117932, 9176008, 15956381, 16058014, 18235864, 18352016, 31912762, 32116028, 36471728, 63825524, 64232056, 127651048, 128464112, 180079157, 255302096, 360158314, 720316628, 1260554099, 1440633256, 2521108198, 2881266512, 5042216396, 10084432792, 20168865584]

約数ペア:

[(1, 20168865584), (2, 10084432792), (4, 5042216396), (7, 2881266512), (8, 2521108198), (14, 1440633256), (16, 1260554099), (28, 720316628), (56, 360158314), (79, 255302096), (112, 180079157), (157, 128464112), (158, 127651048), (314, 64232056), (316, 63825524), (553, 36471728), (628, 32116028), (632, 31912762), (1099, 18352016), (1106, 18235864), (1256, 16058014), (1264, 15956381), (2198, 9176008), (2212, 9117932), (2512, 8029007), (4396, 4588004), (4424, 4558966), (8792, 2294002), (8848, 2279483), (12403, 1626128), (14519, 1389136), (17584, 1147001), (24806, 813064), (29038, 694568), (49612, 406532), (58076, 347284), (86821, 232304), (99224, 203266), (101633, 198448), (116152, 173642)]