138027520

素因数分解:

$2^9\times 5^1\times {\mathrm{53917}}^1$

素因数の和:53940

約数の個数: 40

約数和(自身を含む): 330948684

約数和(自身を除く): 192921164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 53917, 107834, 215668, 269585, 431336, 539170, 862672, 1078340, 1725344, 2156680, 3450688, 4313360, 6901376, 8626720, 13802752, 17253440, 27605504, 34506880, 69013760, 138027520]

約数ペア:

[(1, 138027520), (2, 69013760), (4, 34506880), (5, 27605504), (8, 17253440), (10, 13802752), (16, 8626720), (20, 6901376), (32, 4313360), (40, 3450688), (64, 2156680), (80, 1725344), (128, 1078340), (160, 862672), (256, 539170), (320, 431336), (512, 269585), (640, 215668), (1280, 107834), (2560, 53917)]