257704960

素因数分解:

$2^{10}\times 5^1\times {\mathrm{50333}}^1$

素因数の和:50358

約数の個数: 44

約数和(自身を含む): 618202188

約数和(自身を除く): 360497228

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, 50333, 100666, 201332, 251665, 402664, 503330, 805328, 1006660, 1610656, 2013320, 3221312, 4026640, 6442624, 8053280, 12885248, 16106560, 25770496, 32213120, 51540992, 64426240, 128852480, 257704960]

約数ペア:

[(1, 257704960), (2, 128852480), (4, 64426240), (5, 51540992), (8, 32213120), (10, 25770496), (16, 16106560), (20, 12885248), (32, 8053280), (40, 6442624), (64, 4026640), (80, 3221312), (128, 2013320), (160, 1610656), (256, 1006660), (320, 805328), (512, 503330), (640, 402664), (1024, 251665), (1280, 201332), (2560, 100666), (5120, 50333)]