81291392

素因数分解:

$2^7\times 7^2\times {\mathrm{13}}^1\times {\mathrm{997}}^1$

素因数の和:1038

約数の個数: 96

約数和(自身を含む): 203083020

約数和(自身を除く): 121791628

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 128, 182, 196, 208, 224, 364, 392, 416, 448, 637, 728, 784, 832, 896, 997, 1274, 1456, 1568, 1664, 1994, 2548, 2912, 3136, 3988, 5096, 5824, 6272, 6979, 7976, 10192, 11648, 12961, 13958, 15952, 20384, 25922, 27916, 31904, 40768, 48853, 51844, 55832, 63808, 81536, 90727, 97706, 103688, 111664, 127616, 181454, 195412, 207376, 223328, 362908, 390824, 414752, 446656, 635089, 725816, 781648, 829504, 893312, 1270178, 1451632, 1563296, 1659008, 2540356, 2903264, 3126592, 5080712, 5806528, 6253184, 10161424, 11613056, 20322848, 40645696, 81291392]

約数ペア:

[(1, 81291392), (2, 40645696), (4, 20322848), (7, 11613056), (8, 10161424), (13, 6253184), (14, 5806528), (16, 5080712), (26, 3126592), (28, 2903264), (32, 2540356), (49, 1659008), (52, 1563296), (56, 1451632), (64, 1270178), (91, 893312), (98, 829504), (104, 781648), (112, 725816), (128, 635089), (182, 446656), (196, 414752), (208, 390824), (224, 362908), (364, 223328), (392, 207376), (416, 195412), (448, 181454), (637, 127616), (728, 111664), (784, 103688), (832, 97706), (896, 90727), (997, 81536), (1274, 63808), (1456, 55832), (1568, 51844), (1664, 48853), (1994, 40768), (2548, 31904), (2912, 27916), (3136, 25922), (3988, 20384), (5096, 15952), (5824, 13958), (6272, 12961), (6979, 11648), (7976, 10192)]