394978688

素因数分解:

$2^7\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 926766900

約数和(自身を除く): 531788212

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 32, 38, 52, 62, 64, 76, 104, 124, 128, 152, 169, 208, 247, 248, 304, 338, 403, 416, 494, 496, 589, 608, 676, 806, 832, 961, 988, 992, 1178, 1216, 1352, 1612, 1664, 1922, 1976, 1984, 2356, 2432, 2704, 3211, 3224, 3844, 3952, 3968, 4712, 5239, 5408, 6422, 6448, 7657, 7688, 7904, 9424, 10478, 10816, 12493, 12844, 12896, 15314, 15376, 15808, 18259, 18848, 20956, 21632, 24986, 25688, 25792, 30628, 30752, 31616, 36518, 37696, 41912, 49972, 51376, 51584, 61256, 61504, 73036, 75392, 83824, 99541, 99944, 102752, 122512, 123008, 146072, 162409, 167648, 199082, 199888, 205504, 237367, 245024, 292144, 324818, 335296, 398164, 399776, 411008, 474734, 490048, 584288, 649636, 670592, 796328, 799552, 949468, 980096, 1168576, 1299272, 1592656, 1599104, 1898936, 2337152, 2598544, 3085771, 3185312, 3797872, 5197088, 6171542, 6370624, 7595744, 10394176, 12343084, 12741248, 15191488, 20788352, 24686168, 30382976, 49372336, 98744672, 197489344, 394978688]

約数ペア:

[(1, 394978688), (2, 197489344), (4, 98744672), (8, 49372336), (13, 30382976), (16, 24686168), (19, 20788352), (26, 15191488), (31, 12741248), (32, 12343084), (38, 10394176), (52, 7595744), (62, 6370624), (64, 6171542), (76, 5197088), (104, 3797872), (124, 3185312), (128, 3085771), (152, 2598544), (169, 2337152), (208, 1898936), (247, 1599104), (248, 1592656), (304, 1299272), (338, 1168576), (403, 980096), (416, 949468), (494, 799552), (496, 796328), (589, 670592), (608, 649636), (676, 584288), (806, 490048), (832, 474734), (961, 411008), (988, 399776), (992, 398164), (1178, 335296), (1216, 324818), (1352, 292144), (1612, 245024), (1664, 237367), (1922, 205504), (1976, 199888), (1984, 199082), (2356, 167648), (2432, 162409), (2704, 146072), (3211, 123008), (3224, 122512), (3844, 102752), (3952, 99944), (3968, 99541), (4712, 83824), (5239, 75392), (5408, 73036), (6422, 61504), (6448, 61256), (7657, 51584), (7688, 51376), (7904, 49972), (9424, 41912), (10478, 37696), (10816, 36518), (12493, 31616), (12844, 30752), (12896, 30628), (15314, 25792), (15376, 25688), (15808, 24986), (18259, 21632), (18848, 20956)]