81213444

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1789}}^1$

素因数の和:1909

約数の個数: 72

約数和(自身を含む): 223485080

約数和(自身を除く): 142271636

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 97, 117, 156, 194, 234, 291, 388, 468, 582, 873, 1164, 1261, 1746, 1789, 2522, 3492, 3578, 3783, 5044, 5367, 7156, 7566, 10734, 11349, 15132, 16101, 21468, 22698, 23257, 32202, 45396, 46514, 64404, 69771, 93028, 139542, 173533, 209313, 279084, 347066, 418626, 520599, 694132, 837252, 1041198, 1561797, 2082396, 2255929, 3123594, 4511858, 6247188, 6767787, 9023716, 13535574, 20303361, 27071148, 40606722, 81213444]

約数ペア:

[(1, 81213444), (2, 40606722), (3, 27071148), (4, 20303361), (6, 13535574), (9, 9023716), (12, 6767787), (13, 6247188), (18, 4511858), (26, 3123594), (36, 2255929), (39, 2082396), (52, 1561797), (78, 1041198), (97, 837252), (117, 694132), (156, 520599), (194, 418626), (234, 347066), (291, 279084), (388, 209313), (468, 173533), (582, 139542), (873, 93028), (1164, 69771), (1261, 64404), (1746, 46514), (1789, 45396), (2522, 32202), (3492, 23257), (3578, 22698), (3783, 21468), (5044, 16101), (5367, 15132), (7156, 11349), (7566, 10734)]