1211700784

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{809}}^1$

素因数の和:1178

約数の個数: 80

約数和(自身を含む): 2757680640

約数和(自身を除く): 1545979856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 311, 344, 602, 622, 688, 809, 1204, 1244, 1618, 2177, 2408, 2488, 3236, 4354, 4816, 4976, 5663, 6472, 8708, 11326, 12944, 13373, 17416, 22652, 26746, 34787, 34832, 45304, 53492, 69574, 90608, 93611, 106984, 139148, 187222, 213968, 243509, 251599, 278296, 374444, 487018, 503198, 556592, 748888, 974036, 1006396, 1497776, 1761193, 1948072, 2012792, 3522386, 3896144, 4025584, 7044772, 10818757, 14089544, 21637514, 28179088, 43275028, 75731299, 86550056, 151462598, 173100112, 302925196, 605850392, 1211700784]

約数ペア:

[(1, 1211700784), (2, 605850392), (4, 302925196), (7, 173100112), (8, 151462598), (14, 86550056), (16, 75731299), (28, 43275028), (43, 28179088), (56, 21637514), (86, 14089544), (112, 10818757), (172, 7044772), (301, 4025584), (311, 3896144), (344, 3522386), (602, 2012792), (622, 1948072), (688, 1761193), (809, 1497776), (1204, 1006396), (1244, 974036), (1618, 748888), (2177, 556592), (2408, 503198), (2488, 487018), (3236, 374444), (4354, 278296), (4816, 251599), (4976, 243509), (5663, 213968), (6472, 187222), (8708, 139148), (11326, 106984), (12944, 93611), (13373, 90608), (17416, 69574), (22652, 53492), (26746, 45304), (34787, 34832)]