642280492791

素因数分解:

$3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{97871}}^1$

素因数の和:98561

約数の個数: 72

約数和(自身を含む): 1127880059904

約数和(自身を除く): 485599567113

約数列:

[1, 3, 7, 9, 21, 23, 49, 63, 69, 147, 161, 207, 441, 483, 647, 1127, 1449, 1941, 3381, 4529, 5823, 10143, 13587, 14881, 31703, 40761, 44643, 95109, 97871, 104167, 133929, 285327, 293613, 312501, 685097, 729169, 880839, 937503, 2055291, 2187507, 2251033, 4795679, 6165873, 6562521, 6753099, 14387037, 15757231, 20259297, 43161111, 47271693, 63322537, 110300617, 141815079, 189967611, 330901851, 443257759, 569902833, 992705553, 1329773277, 1456418351, 3102804313, 3989319831, 4369255053, 9308412939, 10194928457, 13107765159, 27925238817, 30584785371, 71364499199, 91754356113, 214093497597, 642280492791]

約数ペア:

[(1, 642280492791), (3, 214093497597), (7, 91754356113), (9, 71364499199), (21, 30584785371), (23, 27925238817), (49, 13107765159), (63, 10194928457), (69, 9308412939), (147, 4369255053), (161, 3989319831), (207, 3102804313), (441, 1456418351), (483, 1329773277), (647, 992705553), (1127, 569902833), (1449, 443257759), (1941, 330901851), (3381, 189967611), (4529, 141815079), (5823, 110300617), (10143, 63322537), (13587, 47271693), (14881, 43161111), (31703, 20259297), (40761, 15757231), (44643, 14387037), (95109, 6753099), (97871, 6562521), (104167, 6165873), (133929, 4795679), (285327, 2251033), (293613, 2187507), (312501, 2055291), (685097, 937503), (729169, 880839)]