128814680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{169493}}^1$

素因数の和:169523

約数の個数: 32

約数和(自身を含む): 305089200

約数和(自身を除く): 176274520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 169493, 338986, 677972, 847465, 1355944, 1694930, 3220367, 3389860, 6440734, 6779720, 12881468, 16101835, 25762936, 32203670, 64407340, 128814680]

約数ペア:

[(1, 128814680), (2, 64407340), (4, 32203670), (5, 25762936), (8, 16101835), (10, 12881468), (19, 6779720), (20, 6440734), (38, 3389860), (40, 3220367), (76, 1694930), (95, 1355944), (152, 847465), (190, 677972), (380, 338986), (760, 169493)]