18713720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20341}}^1$

素因数の和:20375

約数の個数: 32

約数和(自身を含む): 43938720

約数和(自身を除く): 25225000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20341, 40682, 81364, 101705, 162728, 203410, 406820, 467843, 813640, 935686, 1871372, 2339215, 3742744, 4678430, 9356860, 18713720]

約数ペア:

[(1, 18713720), (2, 9356860), (4, 4678430), (5, 3742744), (8, 2339215), (10, 1871372), (20, 935686), (23, 813640), (40, 467843), (46, 406820), (92, 203410), (115, 162728), (184, 101705), (230, 81364), (460, 40682), (920, 20341)]