421153280

素因数分解:

$2^9\times 5^1\times {\mathrm{164513}}^1$

素因数の和:164536

約数の個数: 40

約数和(自身を含む): 1009786932

約数和(自身を除く): 588633652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 164513, 329026, 658052, 822565, 1316104, 1645130, 2632208, 3290260, 5264416, 6580520, 10528832, 13161040, 21057664, 26322080, 42115328, 52644160, 84230656, 105288320, 210576640, 421153280]

約数ペア:

[(1, 421153280), (2, 210576640), (4, 105288320), (5, 84230656), (8, 52644160), (10, 42115328), (16, 26322080), (20, 21057664), (32, 13161040), (40, 10528832), (64, 6580520), (80, 5264416), (128, 3290260), (160, 2632208), (256, 1645130), (320, 1316104), (512, 822565), (640, 658052), (1280, 329026), (2560, 164513)]