243458748

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{173}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 695175936

約数和(自身を除く): 451717188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 97, 117, 124, 156, 173, 186, 194, 234, 279, 291, 346, 372, 388, 403, 468, 519, 558, 582, 692, 806, 873, 1038, 1116, 1164, 1209, 1261, 1557, 1612, 1746, 2076, 2249, 2418, 2522, 3007, 3114, 3492, 3627, 3783, 4498, 4836, 5044, 5363, 6014, 6228, 6747, 7254, 7566, 8996, 9021, 10726, 11349, 12028, 13494, 14508, 15132, 16089, 16781, 18042, 20241, 21452, 22698, 26988, 27063, 32178, 33562, 36084, 39091, 40482, 45396, 48267, 50343, 54126, 64356, 67124, 69719, 78182, 80964, 96534, 100686, 108252, 117273, 139438, 151029, 156364, 193068, 201372, 209157, 218153, 234546, 278876, 302058, 351819, 418314, 436306, 469092, 520211, 604116, 627471, 654459, 703638, 836628, 872612, 1040422, 1254942, 1308918, 1407276, 1560633, 1963377, 2080844, 2509884, 2617836, 3121266, 3926754, 4681899, 6242532, 6762743, 7853508, 9363798, 13525486, 18727596, 20288229, 27050972, 40576458, 60864687, 81152916, 121729374, 243458748]

約数ペア:

[(1, 243458748), (2, 121729374), (3, 81152916), (4, 60864687), (6, 40576458), (9, 27050972), (12, 20288229), (13, 18727596), (18, 13525486), (26, 9363798), (31, 7853508), (36, 6762743), (39, 6242532), (52, 4681899), (62, 3926754), (78, 3121266), (93, 2617836), (97, 2509884), (117, 2080844), (124, 1963377), (156, 1560633), (173, 1407276), (186, 1308918), (194, 1254942), (234, 1040422), (279, 872612), (291, 836628), (346, 703638), (372, 654459), (388, 627471), (403, 604116), (468, 520211), (519, 469092), (558, 436306), (582, 418314), (692, 351819), (806, 302058), (873, 278876), (1038, 234546), (1116, 218153), (1164, 209157), (1209, 201372), (1261, 193068), (1557, 156364), (1612, 151029), (1746, 139438), (2076, 117273), (2249, 108252), (2418, 100686), (2522, 96534), (3007, 80964), (3114, 78182), (3492, 69719), (3627, 67124), (3783, 64356), (4498, 54126), (4836, 50343), (5044, 48267), (5363, 45396), (6014, 40482), (6228, 39091), (6747, 36084), (7254, 33562), (7566, 32178), (8996, 27063), (9021, 26988), (10726, 22698), (11349, 21452), (12028, 20241), (13494, 18042), (14508, 16781), (15132, 16089)]