127139840

素因数分解:

$2^{18}\times 5^1\times {\mathrm{97}}^1$

素因数の和:138

約数の個数: 76

約数和(自身を含む): 308280756

約数和(自身を除く): 181140916

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 256, 320, 388, 485, 512, 640, 776, 970, 1024, 1280, 1552, 1940, 2048, 2560, 3104, 3880, 4096, 5120, 6208, 7760, 8192, 10240, 12416, 15520, 16384, 20480, 24832, 31040, 32768, 40960, 49664, 62080, 65536, 81920, 99328, 124160, 131072, 163840, 198656, 248320, 262144, 327680, 397312, 496640, 655360, 794624, 993280, 1310720, 1589248, 1986560, 3178496, 3973120, 6356992, 7946240, 12713984, 15892480, 25427968, 31784960, 63569920, 127139840]

約数ペア:

[(1, 127139840), (2, 63569920), (4, 31784960), (5, 25427968), (8, 15892480), (10, 12713984), (16, 7946240), (20, 6356992), (32, 3973120), (40, 3178496), (64, 1986560), (80, 1589248), (97, 1310720), (128, 993280), (160, 794624), (194, 655360), (256, 496640), (320, 397312), (388, 327680), (485, 262144), (512, 248320), (640, 198656), (776, 163840), (970, 131072), (1024, 124160), (1280, 99328), (1552, 81920), (1940, 65536), (2048, 62080), (2560, 49664), (3104, 40960), (3880, 32768), (4096, 31040), (5120, 24832), (6208, 20480), (7760, 16384), (8192, 15520), (10240, 12416)]