81259136

素因数分解:

$2^7\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1129

約数の個数: 64

約数和(自身を含む): 187272000

約数和(自身を除く): 106012864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 89, 112, 128, 178, 224, 356, 448, 623, 712, 896, 1019, 1246, 1424, 2038, 2492, 2848, 4076, 4984, 5696, 7133, 8152, 9968, 11392, 14266, 16304, 19936, 28532, 32608, 39872, 57064, 65216, 79744, 90691, 114128, 130432, 181382, 228256, 362764, 456512, 634837, 725528, 913024, 1269674, 1451056, 2539348, 2902112, 5078696, 5804224, 10157392, 11608448, 20314784, 40629568, 81259136]

約数ペア:

[(1, 81259136), (2, 40629568), (4, 20314784), (7, 11608448), (8, 10157392), (14, 5804224), (16, 5078696), (28, 2902112), (32, 2539348), (56, 1451056), (64, 1269674), (89, 913024), (112, 725528), (128, 634837), (178, 456512), (224, 362764), (356, 228256), (448, 181382), (623, 130432), (712, 114128), (896, 90691), (1019, 79744), (1246, 65216), (1424, 57064), (2038, 39872), (2492, 32608), (2848, 28532), (4076, 19936), (4984, 16304), (5696, 14266), (7133, 11392), (8152, 9968)]