217623952

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1091}}^1$

素因数の和:1256

約数の個数: 80

約数和(自身を含む): 523216512

約数和(自身を除く): 305592560

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 137, 182, 208, 274, 364, 548, 728, 959, 1091, 1096, 1456, 1781, 1918, 2182, 2192, 3562, 3836, 4364, 7124, 7637, 7672, 8728, 12467, 14183, 14248, 15274, 15344, 17456, 24934, 28366, 28496, 30548, 49868, 56732, 61096, 99281, 99736, 113464, 122192, 149467, 198562, 199472, 226928, 298934, 397124, 597868, 794248, 1046269, 1195736, 1588496, 1943071, 2092538, 2391472, 3886142, 4185076, 7772284, 8370152, 13601497, 15544568, 16740304, 27202994, 31089136, 54405988, 108811976, 217623952]

約数ペア:

[(1, 217623952), (2, 108811976), (4, 54405988), (7, 31089136), (8, 27202994), (13, 16740304), (14, 15544568), (16, 13601497), (26, 8370152), (28, 7772284), (52, 4185076), (56, 3886142), (91, 2391472), (104, 2092538), (112, 1943071), (137, 1588496), (182, 1195736), (208, 1046269), (274, 794248), (364, 597868), (548, 397124), (728, 298934), (959, 226928), (1091, 199472), (1096, 198562), (1456, 149467), (1781, 122192), (1918, 113464), (2182, 99736), (2192, 99281), (3562, 61096), (3836, 56732), (4364, 49868), (7124, 30548), (7637, 28496), (7672, 28366), (8728, 24934), (12467, 17456), (14183, 15344), (14248, 15274)]