208829440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{40787}}^1$

素因数の和:40812

約数の個数: 44

約数和(自身を含む): 500958216

約数和(自身を除く): 292128776

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, 40787, 81574, 163148, 203935, 326296, 407870, 652592, 815740, 1305184, 1631480, 2610368, 3262960, 5220736, 6525920, 10441472, 13051840, 20882944, 26103680, 41765888, 52207360, 104414720, 208829440]

約数ペア:

[(1, 208829440), (2, 104414720), (4, 52207360), (5, 41765888), (8, 26103680), (10, 20882944), (16, 13051840), (20, 10441472), (32, 6525920), (40, 5220736), (64, 3262960), (80, 2610368), (128, 1631480), (160, 1305184), (256, 815740), (320, 652592), (512, 407870), (640, 326296), (1024, 203935), (1280, 163148), (2560, 81574), (5120, 40787)]