100839680

素因数分解:

$2^8\times 5^1\times {\mathrm{78781}}^1$

素因数の和:78802

約数の個数: 36

約数和(自身を含む): 241545612

約数和(自身を除く): 140705932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 78781, 157562, 315124, 393905, 630248, 787810, 1260496, 1575620, 2520992, 3151240, 5041984, 6302480, 10083968, 12604960, 20167936, 25209920, 50419840, 100839680]

約数ペア:

[(1, 100839680), (2, 50419840), (4, 25209920), (5, 20167936), (8, 12604960), (10, 10083968), (16, 6302480), (20, 5041984), (32, 3151240), (40, 2520992), (64, 1575620), (80, 1260496), (128, 787810), (160, 630248), (256, 393905), (320, 315124), (640, 157562), (1280, 78781)]