389520208

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:142

約数の個数: 180

約数和(自身を含む): 1010667456

約数和(自身を除く): 621147248

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 47, 49, 56, 62, 77, 88, 94, 98, 112, 124, 154, 176, 188, 196, 217, 248, 308, 329, 341, 376, 392, 434, 496, 517, 539, 616, 658, 682, 752, 784, 868, 961, 1034, 1078, 1232, 1316, 1364, 1457, 1519, 1736, 1922, 2068, 2156, 2303, 2387, 2632, 2728, 2914, 3038, 3472, 3619, 3844, 4136, 4312, 4606, 4774, 5264, 5456, 5828, 6076, 6727, 7238, 7688, 8272, 8624, 9212, 9548, 10199, 10571, 11656, 12152, 13454, 14476, 15376, 16027, 16709, 18424, 19096, 20398, 21142, 23312, 24304, 25333, 26908, 28952, 32054, 33418, 36848, 38192, 40796, 42284, 45167, 47089, 50666, 53816, 57904, 64108, 66836, 71393, 73997, 81592, 84568, 90334, 94178, 101332, 107632, 112189, 128216, 133672, 142786, 147994, 163184, 169136, 180668, 188356, 202664, 224378, 256432, 267344, 285572, 295988, 316169, 361336, 376712, 405328, 448756, 496837, 517979, 571144, 591976, 632338, 722672, 753424, 785323, 897512, 993674, 1035958, 1142288, 1183952, 1264676, 1570646, 1795024, 1987348, 2071916, 2213183, 2529352, 3141292, 3477859, 3974696, 4143832, 4426366, 5058704, 6282584, 6955718, 7949392, 8287664, 8852732, 12565168, 13911436, 17705464, 24345013, 27822872, 35410928, 48690026, 55645744, 97380052, 194760104, 389520208]

約数ペア:

[(1, 389520208), (2, 194760104), (4, 97380052), (7, 55645744), (8, 48690026), (11, 35410928), (14, 27822872), (16, 24345013), (22, 17705464), (28, 13911436), (31, 12565168), (44, 8852732), (47, 8287664), (49, 7949392), (56, 6955718), (62, 6282584), (77, 5058704), (88, 4426366), (94, 4143832), (98, 3974696), (112, 3477859), (124, 3141292), (154, 2529352), (176, 2213183), (188, 2071916), (196, 1987348), (217, 1795024), (248, 1570646), (308, 1264676), (329, 1183952), (341, 1142288), (376, 1035958), (392, 993674), (434, 897512), (496, 785323), (517, 753424), (539, 722672), (616, 632338), (658, 591976), (682, 571144), (752, 517979), (784, 496837), (868, 448756), (961, 405328), (1034, 376712), (1078, 361336), (1232, 316169), (1316, 295988), (1364, 285572), (1457, 267344), (1519, 256432), (1736, 224378), (1922, 202664), (2068, 188356), (2156, 180668), (2303, 169136), (2387, 163184), (2632, 147994), (2728, 142786), (2914, 133672), (3038, 128216), (3472, 112189), (3619, 107632), (3844, 101332), (4136, 94178), (4312, 90334), (4606, 84568), (4774, 81592), (5264, 73997), (5456, 71393), (5828, 66836), (6076, 64108), (6727, 57904), (7238, 53816), (7688, 50666), (8272, 47089), (8624, 45167), (9212, 42284), (9548, 40796), (10199, 38192), (10571, 36848), (11656, 33418), (12152, 32054), (13454, 28952), (14476, 26908), (15376, 25333), (16027, 24304), (16709, 23312), (18424, 21142), (19096, 20398)]