128967680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{25189}}^1$

素因数の和:25214

約数の個数: 44

約数和(自身を含む): 309383580

約数和(自身を除く): 180415900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 25189, 50378, 100756, 125945, 201512, 251890, 403024, 503780, 806048, 1007560, 1612096, 2015120, 3224192, 4030240, 6448384, 8060480, 12896768, 16120960, 25793536, 32241920, 64483840, 128967680]

約数ペア:

[(1, 128967680), (2, 64483840), (4, 32241920), (5, 25793536), (8, 16120960), (10, 12896768), (16, 8060480), (20, 6448384), (32, 4030240), (40, 3224192), (64, 2015120), (80, 1612096), (128, 1007560), (160, 806048), (256, 503780), (320, 403024), (512, 251890), (640, 201512), (1024, 125945), (1280, 100756), (2560, 50378), (5120, 25189)]