81278848

素因数分解:

$2^7\times 7^2\times {\mathrm{12959}}^1$

素因数の和:12987

約数の個数: 48

約数和(自身を含む): 188373600

約数和(自身を除く): 107094752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 6272, 12959, 25918, 51836, 90713, 103672, 181426, 207344, 362852, 414688, 634991, 725704, 829376, 1269982, 1451408, 1658752, 2539964, 2902816, 5079928, 5805632, 10159856, 11611264, 20319712, 40639424, 81278848]

約数ペア:

[(1, 81278848), (2, 40639424), (4, 20319712), (7, 11611264), (8, 10159856), (14, 5805632), (16, 5079928), (28, 2902816), (32, 2539964), (49, 1658752), (56, 1451408), (64, 1269982), (98, 829376), (112, 725704), (128, 634991), (196, 414688), (224, 362852), (392, 207344), (448, 181426), (784, 103672), (896, 90713), (1568, 51836), (3136, 25918), (6272, 12959)]