197719984

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{167}}^1$

素因数の和:255

約数の個数: 120

約数和(自身を含む): 496468224

約数和(自身を除く): 298748240

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 56, 62, 77, 88, 112, 124, 154, 167, 176, 217, 248, 308, 334, 341, 434, 496, 616, 668, 682, 868, 961, 1169, 1232, 1336, 1364, 1736, 1837, 1922, 2338, 2387, 2672, 2728, 3472, 3674, 3844, 4676, 4774, 5177, 5456, 6727, 7348, 7688, 9352, 9548, 10354, 10571, 12859, 13454, 14696, 15376, 18704, 19096, 20708, 21142, 25718, 26908, 29392, 36239, 38192, 41416, 42284, 51436, 53816, 56947, 72478, 73997, 82832, 84568, 102872, 107632, 113894, 144956, 147994, 160487, 169136, 205744, 227788, 289912, 295988, 320974, 398629, 455576, 579824, 591976, 641948, 797258, 911152, 1123409, 1183952, 1283896, 1594516, 1765357, 2246818, 2567792, 3189032, 3530714, 4493636, 6378064, 7061428, 8987272, 12357499, 14122856, 17974544, 24714998, 28245712, 49429996, 98859992, 197719984]

約数ペア:

[(1, 197719984), (2, 98859992), (4, 49429996), (7, 28245712), (8, 24714998), (11, 17974544), (14, 14122856), (16, 12357499), (22, 8987272), (28, 7061428), (31, 6378064), (44, 4493636), (56, 3530714), (62, 3189032), (77, 2567792), (88, 2246818), (112, 1765357), (124, 1594516), (154, 1283896), (167, 1183952), (176, 1123409), (217, 911152), (248, 797258), (308, 641948), (334, 591976), (341, 579824), (434, 455576), (496, 398629), (616, 320974), (668, 295988), (682, 289912), (868, 227788), (961, 205744), (1169, 169136), (1232, 160487), (1336, 147994), (1364, 144956), (1736, 113894), (1837, 107632), (1922, 102872), (2338, 84568), (2387, 82832), (2672, 73997), (2728, 72478), (3472, 56947), (3674, 53816), (3844, 51436), (4676, 42284), (4774, 41416), (5177, 38192), (5456, 36239), (6727, 29392), (7348, 26908), (7688, 25718), (9352, 21142), (9548, 20708), (10354, 19096), (10571, 18704), (12859, 15376), (13454, 14696)]