20123341756

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{1109}}^1\times {\mathrm{2153}}^1$

素因数の和:3323

約数の個数: 72

約数和(自身を含む): 41975342640

約数和(自身を除く): 21852000884

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1109, 1204, 2107, 2153, 2218, 4214, 4306, 4436, 7763, 8428, 8612, 15071, 15526, 30142, 31052, 47687, 54341, 60284, 92579, 95374, 105497, 108682, 185158, 190748, 210994, 217364, 333809, 370316, 421988, 648053, 667618, 1296106, 1335236, 2336663, 2387677, 2592212, 4536371, 4673326, 4775354, 9072742, 9346652, 9550708, 16713739, 18145484, 33427478, 66854956, 102670111, 116996173, 205340222, 233992346, 410680444, 467984692, 718690777, 1437381554, 2874763108, 5030835439, 10061670878, 20123341756]

約数ペア:

[(1, 20123341756), (2, 10061670878), (4, 5030835439), (7, 2874763108), (14, 1437381554), (28, 718690777), (43, 467984692), (49, 410680444), (86, 233992346), (98, 205340222), (172, 116996173), (196, 102670111), (301, 66854956), (602, 33427478), (1109, 18145484), (1204, 16713739), (2107, 9550708), (2153, 9346652), (2218, 9072742), (4214, 4775354), (4306, 4673326), (4436, 4536371), (7763, 2592212), (8428, 2387677), (8612, 2336663), (15071, 1335236), (15526, 1296106), (30142, 667618), (31052, 648053), (47687, 421988), (54341, 370316), (60284, 333809), (92579, 217364), (95374, 210994), (105497, 190748), (108682, 185158)]