128529920

素因数分解:

$2^9\times 5^1\times {\mathrm{50207}}^1$

素因数の和:50230

約数の個数: 40

約数和(自身を含む): 308176704

約数和(自身を除く): 179646784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 50207, 100414, 200828, 251035, 401656, 502070, 803312, 1004140, 1606624, 2008280, 3213248, 4016560, 6426496, 8033120, 12852992, 16066240, 25705984, 32132480, 64264960, 128529920]

約数ペア:

[(1, 128529920), (2, 64264960), (4, 32132480), (5, 25705984), (8, 16066240), (10, 12852992), (16, 8033120), (20, 6426496), (32, 4016560), (40, 3213248), (64, 2008280), (80, 1606624), (128, 1004140), (160, 803312), (256, 502070), (320, 401656), (512, 251035), (640, 200828), (1280, 100414), (2560, 50207)]