199943968

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{197}}^2$

素因数の和:434

約数の個数: 72

約数和(自身を含む): 471828672

約数和(自身を除く): 271884704

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 197, 224, 322, 368, 394, 644, 736, 788, 1288, 1379, 1576, 2576, 2758, 3152, 4531, 5152, 5516, 6304, 9062, 11032, 18124, 22064, 31717, 36248, 38809, 44128, 63434, 72496, 77618, 126868, 144992, 155236, 253736, 271663, 310472, 507472, 543326, 620944, 892607, 1014944, 1086652, 1241888, 1785214, 2173304, 3570428, 4346608, 6248249, 7140856, 8693216, 12496498, 14281712, 24992996, 28563424, 49985992, 99971984, 199943968]

約数ペア:

[(1, 199943968), (2, 99971984), (4, 49985992), (7, 28563424), (8, 24992996), (14, 14281712), (16, 12496498), (23, 8693216), (28, 7140856), (32, 6248249), (46, 4346608), (56, 3570428), (92, 2173304), (112, 1785214), (161, 1241888), (184, 1086652), (197, 1014944), (224, 892607), (322, 620944), (368, 543326), (394, 507472), (644, 310472), (736, 271663), (788, 253736), (1288, 155236), (1379, 144992), (1576, 126868), (2576, 77618), (2758, 72496), (3152, 63434), (4531, 44128), (5152, 38809), (5516, 36248), (6304, 31717), (9062, 22064), (11032, 18124)]