138280960

素因数分解:

$2^{17}\times 5^1\times {\mathrm{211}}^1$

素因数の和:250

約数の個数: 72

約数和(自身を含む): 333445896

約数和(自身を除く): 195164936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 211, 256, 320, 422, 512, 640, 844, 1024, 1055, 1280, 1688, 2048, 2110, 2560, 3376, 4096, 4220, 5120, 6752, 8192, 8440, 10240, 13504, 16384, 16880, 20480, 27008, 32768, 33760, 40960, 54016, 65536, 67520, 81920, 108032, 131072, 135040, 163840, 216064, 270080, 327680, 432128, 540160, 655360, 864256, 1080320, 1728512, 2160640, 3457024, 4321280, 6914048, 8642560, 13828096, 17285120, 27656192, 34570240, 69140480, 138280960]

約数ペア:

[(1, 138280960), (2, 69140480), (4, 34570240), (5, 27656192), (8, 17285120), (10, 13828096), (16, 8642560), (20, 6914048), (32, 4321280), (40, 3457024), (64, 2160640), (80, 1728512), (128, 1080320), (160, 864256), (211, 655360), (256, 540160), (320, 432128), (422, 327680), (512, 270080), (640, 216064), (844, 163840), (1024, 135040), (1055, 131072), (1280, 108032), (1688, 81920), (2048, 67520), (2110, 65536), (2560, 54016), (3376, 40960), (4096, 33760), (4220, 32768), (5120, 27008), (6752, 20480), (8192, 16880), (8440, 16384), (10240, 13504)]